/* =====================================================================
   CasaLead — Landing page
   Light, modern UI · whites & grays · blue brand accent
   ===================================================================== */

:root{
    /* surfaces */
    --bg:#ffffff;
    --bg-soft:#f6f8fc;
    --bg-alt:#f4f7fd;
    --surface:#ffffff;
    --line:#e9edf5;
    --line-2:#dfe5f0;

    /* ink */
    --ink:#0b1b33;
    --ink-2:#3a4a63;
    --muted:#647089;
    --soft:#94a0b5;

    /* brand (from logo) */
    --brand:#2563eb;
    --brand-d:#1d4ed8;
    --brand-dd:#1e40af;
    --brand-soft:#eaf1ff;
    --navy:#0b1b33;
    --accent:#1e90ff;

    --radius:14px;
    --radius-lg:20px;
    --radius-xl:26px;

    --shadow-xs:0 1px 2px rgba(11,27,51,.05);
    --shadow-sm:0 2px 8px rgba(11,27,51,.06);
    --shadow:0 10px 30px rgba(11,27,51,.08);
    --shadow-lg:0 30px 60px rgba(11,27,51,.12);
    --shadow-brand:0 14px 30px rgba(37,99,235,.30);

    --container:1160px;
    --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
    font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
    color:var(--ink);
    background:var(--bg);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
svg{display:block}

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

/* ---------- typography ---------- */
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.022em;font-weight:800;color:var(--ink)}
h1{font-size:clamp(2.1rem,5.2vw,3.6rem);font-weight:900}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem)}
h3{font-size:1.18rem}
.grad{
    background:linear-gradient(105deg,var(--brand),#3b82f6 45%,var(--accent));
    -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- buttons ---------- */
.btn{
    --b:var(--brand);
    display:inline-flex;align-items:center;justify-content:center;gap:.5em;
    font-weight:700;font-size:.96rem;line-height:1;
    padding:.82em 1.35em;border-radius:11px;border:1.5px solid transparent;
    cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s,color .18s,border-color .18s;
    white-space:nowrap;
}
.btn span{transition:transform .2s var(--ease)}
.btn:hover span[aria-hidden]{transform:translateX(3px)}
.btn-lg{padding:1em 1.7em;font-size:1.02rem;border-radius:13px}
.w-full{width:100%}

.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-brand)}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:0 18px 36px rgba(37,99,235,.38)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink-2)}
.btn-ghost:hover{color:var(--brand);background:var(--brand-soft)}
.btn-light{background:#fff;color:var(--brand-dd);box-shadow:0 14px 30px rgba(0,0,0,.18)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(0,0,0,.26)}
.btn-ghost-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost-light:hover{background:rgba(255,255,255,.22)}

/* =====================================================================
   HEADER
   ===================================================================== */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    transition:background .3s,box-shadow .3s,border-color .3s;
    border-bottom:1px solid transparent;
}
.site-header.scrolled{
    background:rgba(255,255,255,.82);
    backdrop-filter:saturate(180%) blur(14px);
    -webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom-color:var(--line);
    box-shadow:var(--shadow-xs);
}
.nav{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;flex-shrink:0}
.brand-logo{height:38px;width:auto}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.nav-links a{
    color:var(--ink-2);font-weight:600;font-size:.94rem;padding:.5em .85em;border-radius:9px;
    transition:color .15s,background .15s;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-cta{display:flex;align-items:center;gap:8px;flex-shrink:0}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;border-radius:9px}
.nav-toggle span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* =====================================================================
   HERO
   ===================================================================== */
.hero{
    position:relative;padding:148px 0 64px;overflow:hidden;
    background:
        radial-gradient(900px 500px at 78% -8%,#eaf1ff 0,transparent 60%),
        radial-gradient(700px 460px at 6% 8%,#eef5ff 0,transparent 55%),
        linear-gradient(180deg,#fbfcff,#ffffff 60%);
}
.hero-glow{
    position:absolute;top:-180px;right:-120px;width:560px;height:560px;border-radius:50%;
    background:radial-gradient(circle,rgba(37,99,235,.16),transparent 65%);
    filter:blur(20px);pointer-events:none;
}
.hero-grid{
    position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}

.pill{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line-2);
    color:var(--ink-2);font-weight:600;font-size:.82rem;
    padding:.45em .9em;border-radius:40px;box-shadow:var(--shadow-xs);margin-bottom:22px;
}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#16a34a;position:relative}
.pulse-dot::after{content:"";position:absolute;inset:-4px;border-radius:50%;background:rgba(22,163,74,.35);animation:pulse 1.8s infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.9}70%,100%{transform:scale(1.8);opacity:0}}

.hero-copy h1{margin-bottom:18px}
.lead{font-size:clamp(1.05rem,1.5vw,1.22rem);color:var(--muted);max-width:540px;margin-bottom:30px}
.lead strong{color:var(--ink-2);font-weight:700}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}

.hero-trust{list-style:none;display:flex;flex-wrap:wrap;gap:18px}
.hero-trust li{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:.9rem;font-weight:500}
.ic-check{width:18px;height:18px;fill:none;stroke:#16a34a;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}

/* ----- app mockup ----- */
.hero-visual{position:relative}
.mock{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-lg);overflow:hidden;
    transform:perspective(1600px) rotateY(-7deg) rotateX(3deg);
    transition:transform .5s var(--ease);
}
.hero-visual:hover .mock{transform:perspective(1600px) rotateY(-3deg) rotateX(1deg)}
.mock-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;background:var(--bg-soft);border-bottom:1px solid var(--line)}
.mock-bar .dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.mock-url{margin-left:10px;font-size:.78rem;color:var(--soft);background:#fff;border:1px solid var(--line);border-radius:7px;padding:3px 12px}
.mock-body{display:grid;grid-template-columns:128px 1fr;min-height:340px}
.mock-side{background:var(--bg-soft);border-right:1px solid var(--line);padding:16px 12px;display:flex;flex-direction:column;gap:6px}
.ms-brand{font-weight:800;font-size:.9rem;color:var(--navy);margin-bottom:10px;padding-left:6px}
.ms-item{font-size:.8rem;color:var(--muted);padding:8px 10px;border-radius:8px;font-weight:600}
.ms-item.active{background:var(--brand-soft);color:var(--brand)}
.mock-main{padding:18px;display:flex;flex-direction:column;gap:11px}
.mock-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:4px}
.mst{background:var(--bg-soft);border:1px solid var(--line);border-radius:11px;padding:11px 10px}
.mst-v{display:block;font-size:1.3rem;font-weight:800;color:var(--ink)}
.mst-v.grn{color:#16a34a}.mst-v.blu{color:var(--brand)}
.mst-l{font-size:.7rem;color:var(--muted)}
.mock-lead{display:flex;align-items:center;gap:11px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:11px 12px}
.tag{font-size:.62rem;font-weight:800;letter-spacing:.04em;padding:4px 8px;border-radius:6px;flex-shrink:0}
.tag.sell{background:#dcfce7;color:#15803d}
.tag.buy{background:#dbeafe;color:#1d4ed8}
.ml-txt{flex:1;min-width:0;display:flex;flex-direction:column}
.ml-txt b{font-size:.82rem;color:var(--ink)}
.ml-txt span{font-size:.72rem;color:var(--soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ml-time{font-size:.68rem;color:var(--soft);flex-shrink:0}

.float-card{
    position:absolute;display:flex;align-items:center;gap:10px;
    background:#fff;border:1px solid var(--line);border-radius:13px;
    padding:11px 14px;box-shadow:var(--shadow);
}
.float-card b{display:block;font-size:.84rem;color:var(--ink);line-height:1.2}
.float-card span:not(.fc-ic){font-size:.72rem;color:var(--muted)}
.fc-ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:1rem;background:#fff7ed;flex-shrink:0}
.fc-ic.ok{background:#dcfce7}
.fc-1{top:24px;left:-26px;animation:float 4.5s ease-in-out infinite}
.fc-2{bottom:30px;right:-22px;animation:float 4.5s ease-in-out infinite .9s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ----- stats strip ----- */
.stats-strip{
    margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-sm);padding:26px 20px;
}
.ss-item{text-align:center;border-right:1px solid var(--line)}
.ss-item:last-child{border-right:0}
.ss-v{display:block;font-size:1.8rem;font-weight:900;color:var(--brand);letter-spacing:-.02em}
.ss-l{font-size:.84rem;color:var(--muted)}

/* =====================================================================
   SECTIONS
   ===================================================================== */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:680px;margin:0 auto 52px;text-align:center}
.eyebrow{
    display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
    color:var(--brand);background:var(--brand-soft);padding:.4em .9em;border-radius:30px;margin-bottom:16px;
}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:1.06rem}

/* ---------- features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px 26px;
    box-shadow:var(--shadow-xs);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s;
}
.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-2)}
.f-ic{
    width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
    background:linear-gradient(145deg,var(--brand-soft),#dce8ff);
}
.f-ic svg{width:26px;height:26px;fill:none;stroke:var(--brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.feature h3{margin-bottom:8px}
.feature p{color:var(--muted);font-size:.95rem}
.feature b{color:var(--ink-2)}

/* ---------- how it works ---------- */
.steps{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:start;gap:8px}
.step{text-align:center;padding:0 14px}
.step-n{
    width:54px;height:54px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;
    font-size:1.3rem;font-weight:900;color:#fff;background:var(--brand);box-shadow:var(--shadow-brand);
}
.step h3{margin-bottom:8px}
.step p{color:var(--muted);font-size:.95rem;max-width:280px;margin:0 auto}
.step-line{height:2px;background:linear-gradient(90deg,var(--line-2),var(--brand-soft));margin-top:27px;min-width:40px}

/* ---------- value / benefits ---------- */
.value-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.value-copy h2{margin:14px 0}
.value-sub{color:var(--muted);font-size:1.06rem;margin-bottom:26px}
.value-list{list-style:none;display:flex;flex-direction:column;gap:15px;margin-bottom:30px}
.value-list li{display:flex;gap:12px;align-items:flex-start;color:var(--ink-2);font-size:1rem}
.value-list .ic-check{margin-top:3px;width:20px;height:20px}
.value-list b{color:var(--ink)}

.value-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);padding:34px;box-shadow:var(--shadow)
}
.vc-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px;font-size:.92rem}
.vc-l{color:var(--muted);font-weight:600}
.vc-old{color:#dc2626;font-weight:800}
.vc-new{color:#16a34a;font-weight:800}
.vc-bar{height:10px;background:var(--bg-soft);border-radius:20px;overflow:hidden;margin-bottom:20px}
.vc-bar span{display:block;height:100%;border-radius:20px;background:linear-gradient(90deg,#fca5a5,#dc2626);transition:width 1s var(--ease)}
.vc-bar.new span{background:linear-gradient(90deg,#4ade80,#16a34a)}
.vc-divider{height:1px;background:var(--line);margin:8px 0 22px}
.vc-big{display:flex;align-items:center;gap:16px}
.vc-big-v{font-size:3rem;font-weight:900;letter-spacing:-.03em;background:linear-gradient(105deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.vc-big-l{color:var(--ink-2);font-weight:600;font-size:.98rem}
.vc-big-l sup{color:var(--soft)}
.vc-note{margin-top:14px;font-size:.78rem;color:var(--soft)}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.price{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--shadow-xs);
    transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.price:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.price.featured{
    border:1.5px solid var(--brand);box-shadow:var(--shadow);
    background:linear-gradient(180deg,#fbfdff,#fff);transform:scale(1.03);
}
.price.featured:hover{transform:scale(1.03) translateY(-5px)}
.p-badge{
    position:absolute;top:-13px;left:50%;transform:translateX(-50%);
    background:var(--brand);color:#fff;font-size:.74rem;font-weight:800;letter-spacing:.03em;
    padding:.4em 1em;border-radius:30px;box-shadow:var(--shadow-brand);white-space:nowrap;
}
.p-name{font-size:1.25rem;margin-bottom:4px}
.p-desc{color:var(--muted);font-size:.9rem;margin-bottom:18px}
.p-price{font-size:2.6rem;font-weight:900;letter-spacing:-.03em;color:var(--ink);margin-bottom:22px}
.p-cur{font-size:1.3rem;font-weight:700;vertical-align:super;margin-right:2px}
.p-per{font-size:.95rem;font-weight:600;color:var(--soft)}
.p-feat{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:26px;flex:1}
.p-feat li{position:relative;padding-left:28px;color:var(--ink-2);font-size:.94rem}
.p-feat li::before{
    content:"";position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;
    background:var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
    transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:var(--line-2);box-shadow:var(--shadow-sm)}
.faq-item summary{
    list-style:none;cursor:pointer;padding:20px 24px;font-weight:700;color:var(--ink);font-size:1.02rem;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-x{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-x::before,.faq-x::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .25s var(--ease)}
.faq-x::before{top:8px;left:0;width:18px;height:2.5px}
.faq-x::after{top:0;left:8px;width:2.5px;height:18px}
.faq-item[open] .faq-x::after{transform:rotate(90deg);opacity:0}
.faq-a{padding:0 24px 20px;color:var(--muted);font-size:.96rem}
.faq-a a{color:var(--brand);font-weight:600}
.faq-a a:hover{text-decoration:underline}
.sec-head a{color:var(--brand);font-weight:600}

/* =====================================================================
   FINAL CTA
   ===================================================================== */
.cta-final{padding:40px 0 96px}
.cta-box{
    position:relative;overflow:hidden;text-align:center;
    background:linear-gradient(135deg,var(--brand-dd),var(--brand) 55%,#3b82f6);
    border-radius:var(--radius-xl);padding:72px 32px;color:#fff;box-shadow:var(--shadow-lg);
}
.cta-glow{position:absolute;inset:0;background:radial-gradient(600px 300px at 50% -20%,rgba(255,255,255,.22),transparent 70%);pointer-events:none}
.cta-box h2{color:#fff;font-size:clamp(1.7rem,3.4vw,2.5rem);margin-bottom:14px;position:relative}
.cta-box p{color:rgba(255,255,255,.9);font-size:1.1rem;margin-bottom:30px;position:relative}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot-brand .brand-logo{height:36px;margin-bottom:16px}
.foot-brand p{color:var(--muted);font-size:.92rem;max-width:300px}
.foot-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--soft);margin-bottom:16px}
.foot-col a{display:block;color:var(--ink-2);font-size:.94rem;padding:5px 0;transition:color .15s}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding-top:26px;border-top:1px solid var(--line)}
.foot-bottom span{color:var(--muted);font-size:.88rem}
.foot-legal{display:flex;gap:22px}
.foot-legal a{color:var(--muted);font-size:.88rem}
.foot-legal a:hover{color:var(--brand)}

/* =====================================================================
   SCROLL REVEAL
   ===================================================================== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:980px){
    .hero-grid{grid-template-columns:1fr;gap:48px}
    .hero-copy{text-align:center}
    .lead{margin-left:auto;margin-right:auto}
    .hero-actions,.hero-trust{justify-content:center}
    .hero-visual{max-width:540px;margin:0 auto}
    .value-grid{grid-template-columns:1fr;gap:40px}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .price-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}
    .price.featured{transform:none}
    .price.featured:hover{transform:translateY(-5px)}
    .steps{grid-template-columns:1fr;gap:34px}
    .step-line{display:none}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .foot-brand{grid-column:1/-1}
}

@media (max-width:760px){
    .nav-links,.nav-cta .btn-ghost{display:none}
    .nav-toggle{display:flex}
    .nav-links{
        position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
        background:rgba(255,255,255,.97);backdrop-filter:blur(14px);
        border-bottom:1px solid var(--line);box-shadow:var(--shadow);
        padding:14px 20px 18px;
        transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s var(--ease);
    }
    .nav-links.open{display:flex;transform:none;opacity:1;pointer-events:auto}
    .nav-links a{padding:.85em 1em;font-size:1rem}
    .hero{padding:120px 0 48px}
    .section{padding:64px 0}
    .stats-strip{grid-template-columns:repeat(2,1fr);gap:18px 0}
    .ss-item:nth-child(2){border-right:0}
    .feature-grid{grid-template-columns:1fr}
    .float-card{display:none}
    .cta-box{padding:48px 22px}
    .foot-bottom{flex-direction:column;text-align:center}
}

@media (max-width:420px){
    .footer-grid{grid-template-columns:1fr}
    .stats-strip{grid-template-columns:1fr}
    .ss-item{border-right:0;border-bottom:1px solid var(--line);padding-bottom:16px}
    .ss-item:last-child{border-bottom:0;padding-bottom:0}
}

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