/* Stickerly — marketing site stylesheet.
   Single dark-mode-only visual language. No framework. */

:root {
    --bg-0: #0b0b14;
    --bg-1: #131323;
    --bg-2: #1b1a33;
    --text: #f1f1f7;
    --text-dim: #b6b6cc;
    --text-faint: #7c7c95;
    --accent: #8b9cff;
    --accent-2: #ff9fd0;
    --success: #3ddc84;
    --radius: 22px;
    --radius-sm: 14px;
    --glass: rgba(255, 255, 255, 0.06);
    --glass-stroke: rgba(255, 255, 255, 0.1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
                 "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-0);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* ---------- Atmospheric background blobs ---------- */
body::before, body::after {
    content: "";
    position: fixed;
    z-index: -1;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
}
body::before { top: -300px; left: -200px;  background: rgba(139, 156, 255, 0.25); }
body::after  { bottom: -300px; right: -200px; background: rgba(255, 159, 208, 0.22); }

/* ---------- Header ---------- */
.top-nav {
    position: sticky; top: 0;
    z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 24px;
    background: rgba(11, 11, 20, 0.7);
    backdrop-filter: saturate(180%) blur(18px);
    -webkit-backdrop-filter: saturate(180%) blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.brand {
    display: flex; align-items: center; gap: 10px;
    font-weight: 700; font-size: 18px;
}
.brand img {
    width: 36px; height: 36px;
    border-radius: 9px;
    box-shadow: 0 4px 14px rgba(255, 159, 208, 0.25);
}
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.lang-switch {
    display: flex; align-items: center;
    background: var(--glass); border: 1px solid var(--glass-stroke);
    border-radius: 999px; padding: 3px;
}
.lang-switch a {
    padding: 5px 12px; font-size: 13px; font-weight: 600;
    color: var(--text-dim); border-radius: 999px; transition: .15s;
}
.lang-switch a.active { color: #0b0b14; background: #f1f1f7; }

/* ---------- Hero ---------- */
.hero {
    padding: 90px 24px 70px;
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px;
    align-items: center;
}
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 600; color: var(--accent);
    padding: 6px 12px; border-radius: 999px;
    background: rgba(139, 156, 255, 0.14);
    border: 1px solid rgba(139, 156, 255, 0.3);
    margin-bottom: 22px;
}
h1 {
    font-size: clamp(40px, 5.6vw, 78px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    font-weight: 800;
    margin-bottom: 22px;
}
h1 .grad {
    background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero p.sub {
    font-size: clamp(16px, 1.6vw, 20px);
    color: var(--text-dim);
    max-width: 560px;
    margin-bottom: 34px;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 22px; border-radius: 999px;
    font-weight: 600; font-size: 15px;
    transition: transform .15s, box-shadow .15s, background .15s;
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    color: #0b0b14;
    box-shadow: 0 14px 40px rgba(139, 156, 255, 0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 48px rgba(255, 159, 208, 0.5); }
.btn-ghost {
    background: var(--glass);
    border: 1px solid var(--glass-stroke);
    color: var(--text);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.10); }

.hero-phone {
    position: relative;
    display: flex; justify-content: center;
    transform: rotate(-4deg);
}
.hero-phone img {
    max-width: 380px;
    width: 100%;
    border-radius: 44px;
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.5),
        0 0 0 8px #1c1c32,
        0 0 0 10px rgba(255, 255, 255, 0.05);
}

/* ---------- Section primitives ---------- */
section { padding: 80px 24px; max-width: 1200px; margin: 0 auto; }
.section-title {
    font-size: clamp(32px, 4vw, 54px);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 16px;
    text-align: center;
}
.section-kicker {
    text-align: center;
    color: var(--text-dim);
    max-width: 640px;
    margin: 0 auto 56px;
    font-size: 18px;
}

/* ---------- Feature grid ---------- */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.feature {
    padding: 28px;
    border-radius: var(--radius);
    background: var(--glass);
    border: 1px solid var(--glass-stroke);
    transition: transform .2s, background .2s;
}
.feature:hover { transform: translateY(-4px); background: rgba(255, 255, 255, 0.09); }
.feature .icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: grid; place-items: center;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    margin-bottom: 18px;
    font-size: 22px;
}
.feature h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
.feature p { color: var(--text-dim); font-size: 15px; }

/* ---------- Showcase (phone carousel) ---------- */
.showcase {
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    display: flex;
    gap: 24px;
    padding: 0 24px 40px;
    margin: 0 -24px;
}
.showcase::-webkit-scrollbar { display: none; }
.showcase-item {
    flex: 0 0 auto;
    scroll-snap-align: center;
    width: 280px;
    text-align: center;
}
.showcase-item img {
    width: 280px;
    border-radius: 36px;
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.45),
        0 0 0 6px #1c1c32,
        0 0 0 8px rgba(255, 255, 255, 0.05);
    margin-bottom: 18px;
}
.showcase-item h4 { font-size: 17px; margin-bottom: 4px; font-weight: 600; }
.showcase-item p { font-size: 14px; color: var(--text-dim); }

/* ---------- Pricing / upgrade strip ---------- */
.pricing {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}
.price-card {
    padding: 32px;
    border-radius: var(--radius);
    background: var(--glass);
    border: 1px solid var(--glass-stroke);
}
.price-card.pro {
    background: linear-gradient(135deg, rgba(139, 156, 255, 0.2), rgba(255, 159, 208, 0.2));
    border: 1px solid rgba(255, 159, 208, 0.35);
    position: relative;
    overflow: hidden;
}
.price-card.pro::before {
    content: "PRO";
    position: absolute; top: 18px; right: 22px;
    padding: 4px 10px; font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
    background: linear-gradient(90deg, #fbbf24, #f97316);
    color: #0b0b14; border-radius: 6px;
}
.price-card h3 { font-size: 22px; margin-bottom: 8px; }
.price-card .amount { font-size: 34px; font-weight: 800; margin: 8px 0 20px; }
.price-card ul { list-style: none; }
.price-card li {
    padding: 8px 0;
    color: var(--text-dim);
    font-size: 15px;
    display: flex; align-items: center; gap: 10px;
}
.price-card li::before {
    content: "✓";
    color: var(--success);
    font-weight: 700;
    display: inline-block;
    width: 18px; height: 18px; line-height: 18px;
    text-align: center;
    background: rgba(61, 220, 132, 0.15);
    border-radius: 50%;
    font-size: 11px;
    flex-shrink: 0;
}

/* ---------- FAQ ---------- */
.faq { max-width: 760px; }
.faq details {
    padding: 20px 24px;
    border-radius: var(--radius-sm);
    background: var(--glass);
    border: 1px solid var(--glass-stroke);
    margin-bottom: 12px;
    cursor: pointer;
}
.faq details[open] { background: rgba(255, 255, 255, 0.08); }
.faq summary {
    list-style: none;
    font-weight: 600;
    font-size: 16px;
    display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--text-dim); transition: transform .15s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--text-dim); margin-top: 12px; font-size: 15px; }

/* ---------- Privacy block ---------- */
.privacy-block {
    padding: 36px;
    border-radius: var(--radius);
    background: var(--glass);
    border: 1px solid var(--glass-stroke);
    max-width: 820px; margin: 0 auto;
}
.privacy-block h3 { margin-bottom: 12px; font-size: 22px; }
.privacy-block p { color: var(--text-dim); margin-bottom: 12px; font-size: 15px; line-height: 1.7; }

/* ---------- Footer ---------- */
footer {
    padding: 60px 24px 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    color: var(--text-faint);
    font-size: 14px;
}
footer .links {
    display: flex; justify-content: center; gap: 22px; flex-wrap: wrap;
    margin-bottom: 20px;
}
footer a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; gap: 40px; text-align: center; padding-top: 60px; }
    .hero .cta-row { justify-content: center; }
    .hero-phone { transform: rotate(0); }
    .features { grid-template-columns: 1fr 1fr; }
    .pricing { grid-template-columns: 1fr; }
    .nav-links a:not(.lang-switch-wrap) { display: none; }
}
@media (max-width: 560px) {
    .features { grid-template-columns: 1fr; }
    section { padding: 60px 20px; }
}