/* =========================================================================
   LIF-CITY IT — Design System
   Vanilla CSS, no build step. Mobile-first, BEM-ish naming.
   Direction: "Enterprise SaaS" (indigo→violet) tempered with Swiss Modernism
   discipline — informed by the ui-ux-pro-max design engine.
   Primary Indigo #4F46E5 · Violet #7C3AED · Slate neutrals · accent Amber.
   ========================================================================= */

/* ---- Tokens ------------------------------------------------------------ */
:root {
    /* Brand scale (indigo). Names kept as --blue-* for backward compat. */
    --blue-50: #eef2ff;
    --blue-100: #e0e7ff;
    --blue-200: #c7d2fe;
    --blue-300: #a5b4fc;
    --blue-500: #6366f1;
    --blue-600: #4f46e5;   /* primary */
    --blue-700: #4338ca;
    --blue-800: #3730a3;

    /* Violet — secondary / gradient end-stop */
    --violet-500: #8b5cf6;
    --violet-600: #7c3aed;
    --violet-700: #6d28d9;

    /* Neutrals (slate) */
    --ink-900: #0f172a;
    --ink-800: #1e293b;
    --ink-700: #334155;
    --ink-600: #475569;
    --ink-500: #64748b;
    --ink-400: #94a3b8;
    --ink-300: #cbd5e1;
    --ink-200: #e2e8f0;
    --ink-100: #f1f5f9;
    --ink-50:  #f8fafc;
    --white:   #ffffff;

    --accent-teal: #0d9488;
    --accent-amber: #f59e0b;
    --accent-violet: #7c3aed;

    --ok: #10b981;
    --err: #ef4444;

    /* Signature brand gradient (indigo → violet) */
    --grad-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --grad-brand-dark: linear-gradient(135deg, #312e81 0%, #5b21b6 100%);

    --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-display: "Plus Jakarta Sans", var(--font-sans);

    --maxw: 1240px;
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 22px;
    --radius-full: 999px;

    /* Indigo-tinted shadows (colored, not flat gray — per Enterprise SaaS) */
    --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.08);
    --shadow: 0 4px 14px rgba(79,70,229,.08), 0 2px 4px rgba(15,23,42,.04);
    --shadow-lg: 0 20px 45px rgba(79,70,229,.16), 0 8px 18px rgba(15,23,42,.06);
    --shadow-blue: 0 12px 28px rgba(79,70,229,.32);

    --space: clamp(3.5rem, 7vw, 6.5rem);
    --transition: .25s cubic-bezier(.4,0,.2,1);
}

/* ---- Reset ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-sans);
    color: var(--ink-700);
    background: var(--white);
    line-height: 1.65;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; }
a { color: var(--blue-600); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-700); }
ul { list-style: none; padding: 0; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink-900); line-height: 1.15; font-weight: 800; letter-spacing: -.02em; }
:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 2px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---- Layout ------------------------------------------------------------ */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2.5rem); }
.section { padding-block: var(--space); }
.section--alt { background: var(--ink-50); }
.narrow { max-width: 760px; margin-inline: auto; }

.skip-link {
    position: absolute; left: -999px; top: 0; z-index: 1000;
    background: var(--blue-600); color: #fff; padding: .75rem 1.25rem; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; color: #fff; }

.eyebrow {
    display: inline-block; font-family: var(--font-display); font-weight: 700;
    font-size: .8rem; letter-spacing: .08em; text-transform: uppercase;
    color: var(--blue-600); margin-bottom: .85rem;
}
.section__head { max-width: 640px; margin-bottom: clamp(2rem, 4vw, 3.25rem); }
.section__head--row { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 1.5rem; flex-wrap: wrap; }
.section__title { font-size: clamp(1.7rem, 3.5vw, 2.6rem); margin-bottom: .65rem; }
.section__lead { color: var(--ink-500); font-size: 1.075rem; }

/* ---- Buttons ----------------------------------------------------------- */
.btn {
    --btn-bg: var(--blue-600); --btn-fg: #fff;
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    font-family: var(--font-display); font-weight: 700; font-size: .95rem;
    padding: .8rem 1.5rem; border-radius: var(--radius-full); border: 1.5px solid transparent;
    background: var(--btn-bg); color: var(--btn-fg); transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
    white-space: nowrap; text-align: center;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--grad-brand); background-size: 140% 140%; color: #fff; box-shadow: var(--shadow-blue); transition: transform var(--transition), box-shadow var(--transition), background-position var(--transition); }
.btn--primary:hover { background-position: 100% 100%; color: #fff; box-shadow: 0 16px 34px rgba(79,70,229,.42); }
.btn--outline { background: transparent; color: var(--ink-800); border-color: var(--ink-200); }
.btn--outline:hover { border-color: var(--blue-600); color: var(--blue-600); }
.btn--outline-light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.4); }
.btn--outline-light:hover { background: rgba(255,255,255,.2); color: #fff; }
.btn--ghost { background: transparent; color: var(--ink-600); padding-inline: 1rem; }
.btn--ghost:hover { background: var(--ink-100); color: var(--ink-800); }
.btn--whatsapp { background: #25d366; color: #fff; }
.btn--whatsapp:hover { background: #1eb955; color:#fff; }
.btn--telegram { background: #229ed9; color: #fff; }
.btn--telegram:hover { background: #1c8abd; color:#fff; }
.btn--sm { padding: .55rem 1.1rem; font-size: .875rem; }
.btn--lg { padding: .95rem 1.9rem; font-size: 1.02rem; }
.btn--block { display: flex; width: 100%; }

/* ---- Icons ------------------------------------------------------------- */
.icon { width: 24px; height: 24px; flex: none; }
.icon--sm { width: 18px; height: 18px; }
.icon--star { width: 18px; height: 18px; color: var(--accent-amber); }

/* ---- Header ------------------------------------------------------------ */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,.85); backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid transparent; transition: box-shadow var(--transition), border-color var(--transition);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); border-color: var(--ink-100); }
.site-header__inner { display: flex; align-items: center; gap: 1.5rem; height: 72px; }
.brand { display: inline-flex; align-items: center; }
.logo { display: inline-flex; align-items: center; gap: .6rem; }
.logo__mark { width: 32px; height: 32px; }
.logo__text { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; color: var(--ink-900); letter-spacing: -.02em; }

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: .35rem; }
.nav__link {
    display: inline-flex; align-items: center; padding: .55rem .85rem; border-radius: var(--radius-sm);
    font-weight: 600; font-size: .95rem; color: var(--ink-700);
}
.nav__link:hover, .nav__link.is-active { color: var(--blue-600); background: var(--blue-50); }
.nav__item { position: relative; }
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown {
    position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px);
    background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius); box-shadow: var(--shadow-lg);
    padding: .6rem; width: 340px; display: grid; gap: .15rem;
    opacity: 0; visibility: hidden; transition: opacity var(--transition), transform var(--transition);
}
.dropdown__link { display: flex; gap: .75rem; align-items: flex-start; padding: .7rem; border-radius: var(--radius-sm); color: var(--ink-700); }
.dropdown__link:hover { background: var(--blue-50); }
.dropdown__icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--blue-50); color: var(--blue-600); flex: none; }
.dropdown__name { display: block; font-weight: 700; font-family: var(--font-display); color: var(--ink-900); font-size: .92rem; }
.dropdown__desc { display: block; font-size: .82rem; color: var(--ink-500); }
.site-header__cta { margin-left: .25rem; }

.hamburger { display: none; background: none; border: none; color: var(--ink-800); padding: .35rem; margin-left: auto; }
.hamburger__close { display: none; }
.site-header.menu-open .hamburger__open { display: none; }
.site-header.menu-open .hamburger__close { display: block; }

.mobile-menu { display: none; border-top: 1px solid var(--ink-100); background: #fff; }
.mobile-menu__nav { display: flex; flex-direction: column; gap: .35rem; padding: 1rem clamp(1.1rem,4vw,2.5rem) 1.75rem; }
.mobile-menu__link { padding: .7rem .25rem; font-weight: 600; font-size: 1.05rem; color: var(--ink-800); border-bottom: 1px solid var(--ink-100); }
.mobile-menu__group { padding: .5rem 0; }
.mobile-menu__heading { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-400); margin-bottom: .35rem; }
.mobile-menu__sublink { display: block; padding: .5rem .75rem; color: var(--ink-600); }
.mobile-menu .btn { margin-top: .75rem; }

/* ---- Hero -------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding-block: clamp(3rem, 7vw, 6rem); background:
    radial-gradient(1100px 500px at 85% -10%, var(--blue-50), transparent 60%),
    linear-gradient(180deg, #fff, var(--ink-50)); }
.hero__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.hero__title { font-size: clamp(2.3rem, 5.2vw, 3.85rem); line-height: 1.05; }
.hero__sub { font-size: 1.15rem; color: var(--ink-600); margin-top: 1.25rem; max-width: 36ch; }
.hero__sub strong { color: var(--ink-900); }
.hero__actions { display: flex; gap: .85rem; margin-top: 2rem; flex-wrap: wrap; }
.hero__proof { display: flex; align-items: center; gap: .75rem; margin-top: 2rem; color: var(--ink-500); font-size: .95rem; }
.hero__proof strong { color: var(--ink-900); }
.hero__stars { display: inline-flex; gap: 2px; }

/* Hero visual */
.hero-visual { position: relative; aspect-ratio: 1 / .92; }
.hero-visual__card { position: absolute; background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 1.25rem 1.4rem; }
.hero-visual__card--main { inset: 8% 4% 18% 6%; display: flex; flex-direction: column; }
.hero-visual__head { display: flex; align-items: center; gap: .5rem; color: var(--ink-500); font-size: .85rem; }
.hero-visual__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(22,163,74,.15); }
.hero-visual__metric { font-family: var(--font-display); font-weight: 800; font-size: 1.9rem; color: var(--ink-900); margin-top: .35rem; }
.hero-visual__delta { font-size: .9rem; color: var(--ok); font-weight: 700; }
.hero-visual__chart { width: 100%; flex: 1; margin-top: auto; }
.hero-visual__card--roas { right: 0; top: 0; background: var(--blue-600); border: none; color: #fff; display: grid; gap: .15rem; box-shadow: var(--shadow-blue); animation: float 5s ease-in-out infinite; }
.hero-visual__card--leads { left: 0; bottom: 0; display: grid; gap: .15rem; animation: float 6s ease-in-out infinite .5s; }
.hero-visual__label { font-size: .78rem; color: var(--ink-400); text-transform: uppercase; letter-spacing: .05em; }
.hero-visual__card--roas .hero-visual__label { color: rgba(255,255,255,.75); }
.hero-visual__big { font-family: var(--font-display); font-weight: 800; font-size: 1.6rem; color: var(--ink-900); }
.hero-visual__card--roas .hero-visual__big { color: #fff; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---- Logo strip -------------------------------------------------------- */
.logo-strip { padding-block: 2.25rem; border-block: 1px solid var(--ink-100); background: #fff; }
.logo-strip__label { text-align: center; color: var(--ink-400); font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 1.25rem; }
.logo-strip__logos { display: flex; flex-wrap: wrap; justify-content: center; gap: clamp(1.5rem, 5vw, 3.5rem); align-items: center; }
.logo-strip__logo { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; color: var(--ink-400); letter-spacing: -.01em; filter: grayscale(1); transition: color var(--transition); }
.logo-strip__logo:hover { color: var(--ink-700); }

/* ---- Card grid & service cards ---------------------------------------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card {
    display: flex; flex-direction: column; gap: .7rem; padding: 1.75rem; background: #fff;
    border: 1px solid var(--ink-100); border-radius: var(--radius-lg); color: var(--ink-700);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-100); }
.service-card__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: var(--blue-50); color: var(--blue-600); }
.service-card__title { font-size: 1.2rem; }
.service-card__desc { color: var(--ink-500); font-size: .95rem; flex: 1; }
.service-card__link { display: inline-flex; align-items: center; gap: .35rem; font-weight: 700; font-family: var(--font-display); color: var(--blue-600); font-size: .9rem; }
.service-card:hover .service-card__link .icon { transform: translateX(4px); }
.service-card__link .icon { transition: transform var(--transition); }

/* ---- Metrics ----------------------------------------------------------- */
.metrics { background: var(--grad-brand); color: #fff; padding-block: clamp(2.5rem, 5vw, 4rem); position: relative; overflow: hidden; }
.metrics::after { content: ""; position: absolute; inset: -40% -10% auto auto; width: 480px; height: 480px; background: radial-gradient(circle, rgba(255,255,255,.14), transparent 70%); pointer-events: none; }
.metrics .container { position: relative; }
.metrics__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.metric__value { font-family: var(--font-display); font-weight: 800; font-size: clamp(2.2rem, 5vw, 3.2rem); line-height: 1; }
.metric__label { margin-top: .6rem; color: rgba(255,255,255,.82); font-size: .98rem; }

/* ---- Tags -------------------------------------------------------------- */
.tag { display: inline-flex; align-items: center; padding: .25rem .65rem; border-radius: var(--radius-full); font-size: .76rem; font-weight: 700; background: var(--ink-100); color: var(--ink-600); letter-spacing: .01em; }
.tag--industry { background: var(--blue-50); color: var(--blue-700); }
.tag--core { background: rgba(16,163,74,.12); color: var(--ok); }
.tag--muted { background: var(--ink-100); color: var(--ink-500); }

/* ---- Case cards -------------------------------------------------------- */
.case-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); overflow: hidden; color: var(--ink-700); transition: transform var(--transition), box-shadow var(--transition); }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-card__thumb { position: relative; aspect-ratio: 16/10; padding: 1.5rem; display: flex; flex-direction: column; justify-content: flex-end; color: #fff; }
.case-card__thumb--a { background: linear-gradient(135deg, #4f46e5, #7c3aed); }
.case-card__thumb--b { background: linear-gradient(135deg, #7c3aed, #c026d3); }
.case-card__thumb--c { background: linear-gradient(135deg, #4338ca, #0891b2); }
.case-card__thumb--d { background: linear-gradient(135deg, #6d28d9, #4f46e5); }
.case-card__result { font-family: var(--font-display); font-weight: 800; font-size: 1.5rem; }
.case-card__client { font-size: .9rem; opacity: .9; }
.case-card__body { padding: 1.35rem 1.5rem 1.6rem; display: flex; flex-direction: column; gap: .75rem; flex: 1; }
.case-card__tags { display: flex; gap: .4rem; flex-wrap: wrap; }
.case-card__summary { color: var(--ink-500); font-size: .95rem; flex: 1; }
.case-card__link { display: inline-flex; align-items: center; gap: .35rem; font-weight: 700; font-family: var(--font-display); color: var(--blue-600); font-size: .9rem; }
.case-card[hidden] { display: none; }

/* ---- Testimonials ------------------------------------------------------ */
.testimonials { position: relative; }
.testimonials__viewport { overflow: hidden; }
.testimonials__track { display: flex; transition: transform .5s cubic-bezier(.4,0,.2,1); }
.testimonial { flex: 0 0 100%; padding: clamp(1.75rem, 4vw, 3rem); background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
@media (min-width: 880px) { .testimonial { flex-basis: 50%; margin-right: 1.5rem; } }
.testimonial__quote-icon { color: var(--blue-100); }
.testimonial__quote { font-family: var(--font-display); font-size: 1.2rem; line-height: 1.5; color: var(--ink-800); font-weight: 600; margin: .5rem 0 1.5rem; }
.testimonial__author { display: flex; align-items: center; gap: .85rem; }
.avatar { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--blue-600); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: .95rem; flex: none; }
.avatar--lg { width: 96px; height: 96px; font-size: 1.6rem; }
.testimonial__name { display: block; font-weight: 700; color: var(--ink-900); font-family: var(--font-display); }
.testimonial__role { display: block; font-size: .88rem; color: var(--ink-500); }
.testimonials__controls { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-top: 1.75rem; }
.testimonials__btn { width: 44px; height: 44px; border-radius: 50%; border: 1.5px solid var(--ink-200); background: #fff; color: var(--ink-700); font-size: 1.4rem; line-height: 1; transition: all var(--transition); }
.testimonials__btn:hover { border-color: var(--blue-600); color: var(--blue-600); }
.testimonials__dots { display: flex; gap: .4rem; }
.testimonials__dots button { width: 9px; height: 9px; border-radius: 50%; border: none; background: var(--ink-200); padding: 0; }
.testimonials__dots button.is-active { background: var(--blue-600); width: 24px; border-radius: var(--radius-full); }

/* ---- CTA band ---------------------------------------------------------- */
.cta-band { padding-block: var(--space); }
.cta-band__inner { background: linear-gradient(135deg, #1e1b4b 0%, #4f46e5 55%, #7c3aed 100%); color: #fff; border-radius: var(--radius-lg); padding: clamp(2.5rem, 6vw, 4.5rem); text-align: center; position: relative; overflow: hidden; }
.cta-band__inner::after { content:""; position:absolute; inset:auto -10% -60% auto; width: 420px; height: 420px; background: radial-gradient(circle, rgba(167,139,250,.55), transparent 70%); }
.cta-band__inner::before { content:""; position:absolute; inset:-50% auto auto -10%; width: 360px; height: 360px; background: radial-gradient(circle, rgba(99,102,241,.4), transparent 70%); }
.cta-band__title { color: #fff; font-size: clamp(1.7rem, 4vw, 2.6rem); position: relative; }
.cta-band__sub { color: rgba(255,255,255,.8); max-width: 52ch; margin: 1rem auto 2rem; position: relative; }
.cta-band__actions { display: flex; gap: .85rem; justify-content: center; flex-wrap: wrap; position: relative; }

/* ---- Page hero --------------------------------------------------------- */
.page-hero { padding-block: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 3vw, 2.5rem); background: radial-gradient(900px 380px at 80% -20%, var(--blue-50), transparent 60%); }
.page-hero--tight { padding-bottom: 0; }
.page-hero--center { text-align: center; padding-block: clamp(4rem,8vw,7rem); }
.page-hero--center .page-hero__inner { margin-inline: auto; }
.page-hero__inner { max-width: 760px; }
.page-hero__title { font-size: clamp(2rem, 4.5vw, 3.2rem); }
.page-hero__lead { font-size: 1.15rem; color: var(--ink-600); margin-top: 1rem; margin-bottom: 1.5rem; }

/* ---- Split / story ----------------------------------------------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.split__text p { color: var(--ink-600); margin-top: 1rem; }
.lead-quote { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; color: var(--blue-700); border-left: 3px solid var(--blue-600); padding-left: 1.1rem; margin-top: 1.5rem !important; }
.stat-stack { display: grid; gap: 1rem; }
.stat-stack__item { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius); padding: 1.5rem 1.75rem; box-shadow: var(--shadow-sm); }
.stat-stack__value { display: block; font-family: var(--font-display); font-weight: 800; font-size: 2.2rem; color: var(--blue-600); }
.stat-stack__label { color: var(--ink-500); }

/* ---- Value & team cards ------------------------------------------------ */
.value-card { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); padding: 1.75rem; }
.value-card__icon { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px; background: var(--blue-50); color: var(--blue-600); margin-bottom: 1rem; }
.value-card__title { font-size: 1.15rem; margin-bottom: .5rem; }
.value-card p { color: var(--ink-500); font-size: .95rem; }
.team-grid { grid-template-columns: repeat(4, 1fr); }
.team-card { text-align: center; padding: 1.5rem; }
.team-card__photo { display: flex; justify-content: center; margin-bottom: 1rem; }
.team-card__photo img { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; }
.team-card__name { font-size: 1.1rem; }
.team-card__role { color: var(--blue-600); font-weight: 600; font-size: .9rem; margin-bottom: .65rem; }
.team-card__bio { color: var(--ink-500); font-size: .9rem; }

/* ---- Certifications ---------------------------------------------------- */
.certs { text-align: center; }
.certs__list { display: flex; flex-wrap: wrap; justify-content: center; gap: .85rem; margin-top: 1.25rem; }
.certs__item { display: inline-flex; align-items: center; gap: .5rem; background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-full); padding: .6rem 1.1rem; font-weight: 600; color: var(--ink-700); }
.certs__item .icon { color: var(--ok); }

/* ---- Services list / rows ---------------------------------------------- */
.service-list { display: grid; gap: 1.5rem; }
.service-row { display: grid; grid-template-columns: auto 1fr; gap: 1.5rem; background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.25rem); transition: box-shadow var(--transition), border-color var(--transition); }
.service-row:hover { box-shadow: var(--shadow); border-color: var(--blue-100); }
.service-row__icon { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 16px; background: var(--blue-50); color: var(--blue-600); }
.service-row__head { display: flex; align-items: center; gap: .85rem; flex-wrap: wrap; }
.service-row__title { font-size: 1.5rem; }
.service-row__tagline { color: var(--blue-600); font-weight: 600; margin-top: .15rem; }
.service-row__desc { color: var(--ink-500); margin-top: .65rem; }
.service-row__deliverables { display: grid; gap: .4rem; margin: 1rem 0; }
.service-row__deliverables li { display: flex; align-items: center; gap: .5rem; color: var(--ink-600); font-size: .92rem; }
.service-row__deliverables .icon { color: var(--ok); }
.service-row__link { display: inline-flex; align-items: center; gap: .35rem; font-weight: 700; font-family: var(--font-display); }

/* ---- Service detail ---------------------------------------------------- */
.breadcrumbs { padding-block: 1rem; font-size: .88rem; color: var(--ink-400); border-bottom: 1px solid var(--ink-100); }
.breadcrumbs a { color: var(--ink-500); }
.breadcrumbs span { margin-inline: .35rem; }
.service-hero { padding-block: clamp(2.5rem, 5vw, 4.5rem); background: radial-gradient(800px 360px at 85% -20%, var(--blue-50), transparent 60%); }
.service-hero__inner { display: grid; grid-template-columns: 1.4fr .6fr; gap: 2.5rem; align-items: center; }
.service-hero__icon { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 16px; background: var(--blue-600); color: #fff; box-shadow: var(--shadow-blue); margin-bottom: 1.1rem; }
.service-hero__title { font-size: clamp(1.9rem, 4.2vw, 3rem); }
.service-hero__sub { color: var(--ink-600); font-size: 1.1rem; margin: 1rem 0 1.75rem; }
.service-hero__stat { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 2rem; text-align: center; }
.service-hero__stat-value { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(2.8rem, 6vw, 4rem); color: var(--blue-600); line-height: 1; }
.service-hero__stat-label { color: var(--ink-500); font-size: .95rem; margin-top: .65rem; display: block; }

.prose p { color: var(--ink-600); font-size: 1.075rem; margin-bottom: 1.1rem; }
.prose .section__title { margin-top: 1.75rem; }
.prose .section__title:first-of-type { margin-top: 0; }

.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; counter-reset: step; }
.process__step { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); padding: 1.75rem 1.5rem; position: relative; }
.process__num { font-family: var(--font-display); font-weight: 800; font-size: 1rem; color: var(--blue-600); background: var(--blue-50); width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; margin-bottom: 1rem; }
.process__title { font-size: 1.1rem; margin-bottom: .5rem; }
.process__step p { color: var(--ink-500); font-size: .92rem; }

.check-list { display: grid; gap: .85rem; }
.check-list li { display: flex; gap: .65rem; align-items: flex-start; color: var(--ink-700); }
.check-list .icon { color: var(--ok); margin-top: 3px; }
.related-cases { display: grid; gap: 1rem; }
.related-case { display: block; background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius); padding: 1.25rem 1.5rem; transition: box-shadow var(--transition); }
.related-case:hover { box-shadow: var(--shadow); }
.related-case__result { display: block; font-family: var(--font-display); font-weight: 800; font-size: 1.4rem; color: var(--blue-600); }
.related-case__client { color: var(--ink-500); font-size: .9rem; }

/* ---- FAQ --------------------------------------------------------------- */
.faq { display: grid; gap: .75rem; }
.faq__item { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius); overflow: hidden; }
.faq__question { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.15rem 1.4rem; background: none; border: none; text-align: left; font-family: var(--font-display); font-weight: 700; color: var(--ink-900); font-size: 1.02rem; }
.faq__icon { font-size: 1.4rem; color: var(--blue-600); transition: transform var(--transition); flex: none; }
.faq__question[aria-expanded="true"] .faq__icon { transform: rotate(45deg); }
.faq__answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq__answer p { padding: 0 1.4rem 1.25rem; color: var(--ink-500); }

/* ---- Case study detail ------------------------------------------------- */
.cs-hero { padding-block: clamp(2.5rem, 5vw, 4.5rem); color: #fff; }
.cs-hero--a { background: linear-gradient(135deg, #4f46e5, #7c3aed); }
.cs-hero--b { background: linear-gradient(135deg, #7c3aed, #c026d3); }
.cs-hero--c { background: linear-gradient(135deg, #4338ca, #0891b2); }
.cs-hero--d { background: linear-gradient(135deg, #6d28d9, #4f46e5); }
.cs-hero__inner { max-width: 820px; }
.cs-hero .tag { background: rgba(255,255,255,.2); color: #fff; }
.cs-hero__title { color: #fff; font-size: clamp(2rem, 5vw, 3.2rem); margin: .85rem 0 .25rem; }
.cs-hero__result { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: rgba(255,255,255,.95); }
.cs-hero__summary { color: rgba(255,255,255,.85); font-size: 1.1rem; margin-top: 1rem; }
.cs-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.cs-metric { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); padding: 1.75rem; text-align: center; box-shadow: var(--shadow-sm); }
.cs-metric__value { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 4vw, 2.8rem); color: var(--blue-600); }
.cs-metric__label { color: var(--ink-500); font-size: .92rem; }
.pull-quote { text-align: center; margin-top: 2.5rem; padding: 2rem; background: var(--blue-50); border-radius: var(--radius-lg); }
.pull-quote__icon { color: var(--blue-200, #bfd3ff); display: flex; justify-content: center; }
.pull-quote blockquote { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; color: var(--ink-900); margin: .5rem 0 1rem; }
.pull-quote figcaption { color: var(--ink-500); font-weight: 600; }

/* ---- Filters ----------------------------------------------------------- */
.filters { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2.5rem; }
.filters__group { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.filters__label { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-400); font-weight: 700; margin-right: .35rem; }
.filter-chip { padding: .5rem 1rem; border-radius: var(--radius-full); border: 1.5px solid var(--ink-200); background: #fff; color: var(--ink-600); font-weight: 600; font-size: .88rem; transition: all var(--transition); }
.filter-chip:hover { border-color: var(--blue-300, #93b4f7); }
.filter-chip.is-active { background: var(--blue-600); border-color: var(--blue-600); color: #fff; }
.filters__empty { text-align: center; color: var(--ink-500); padding: 2rem; }

/* ---- Contact ----------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: clamp(1.75rem, 4vw, 3.5rem); align-items: start; }
.contact-form-wrap { background: #fff; border: 1px solid var(--ink-100); border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.5rem); box-shadow: var(--shadow); }
.contact-form { display: grid; gap: 1.1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field { display: grid; gap: .4rem; }
.field label { font-weight: 600; font-size: .9rem; color: var(--ink-700); }
.req { color: var(--err); }
.field input, .field select, .field textarea {
    width: 100%; padding: .8rem 1rem; border: 1.5px solid var(--ink-200); border-radius: var(--radius-sm);
    font: inherit; color: var(--ink-800); background: #fff; transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px var(--blue-100); }
.field input.has-error, .field select.has-error { border-color: var(--err); }
.field textarea { resize: vertical; }
.field__error { color: var(--err); font-size: .82rem; }
.consent { display: flex; gap: .65rem; align-items: flex-start; font-size: .9rem; color: var(--ink-600); }
.consent input { margin-top: .25rem; width: 18px; height: 18px; flex: none; accent-color: var(--blue-600); }
.form-note { text-align: center; color: var(--ink-400); font-size: .85rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.alert { padding: .9rem 1.1rem; border-radius: var(--radius-sm); margin-bottom: 1.25rem; font-size: .92rem; }
.alert--error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.is-loading { opacity: .7; pointer-events: none; }

.contact-aside h2 { font-size: 1.3rem; margin-bottom: 1.1rem; }
.contact-list { display: grid; gap: .9rem; margin-bottom: 1.75rem; }
.contact-list li { display: flex; align-items: center; gap: .7rem; color: var(--ink-700); }
.contact-list__icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--blue-50); color: var(--blue-600); flex: none; }
.contact-book { display: flex; gap: .85rem; align-items: center; background: var(--ink-50); border: 1px solid var(--ink-100); border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: 1.5rem; }
.contact-book__icon { color: var(--blue-600); }
.contact-book strong { display: block; color: var(--ink-900); }
.contact-chat { display: grid; gap: .65rem; margin-bottom: 1.5rem; }
.contact-map { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--ink-100); }

/* ---- Floating contact -------------------------------------------------- */
.floating-contact { position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 90; display: flex; flex-direction: column; gap: .65rem; }
.floating-contact__btn { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; color: #fff; box-shadow: var(--shadow-lg); transition: transform var(--transition); }
.floating-contact__btn:hover { transform: scale(1.08); color: #fff; }
.floating-contact__btn--whatsapp { background: #25d366; }
.floating-contact__btn--telegram { background: #229ed9; }

/* ---- Cookie banner ----------------------------------------------------- */
.cookie-banner { position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 200; background: #fff; border: 1px solid var(--ink-200); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); max-width: 560px; margin-inline: auto; animation: cookieIn .4s ease; }
@keyframes cookieIn { from { transform: translateY(20px); opacity: 0; } to { transform: none; opacity: 1; } }
.cookie-banner__inner { padding: 1.4rem 1.6rem; }
.cookie-banner__title { font-size: 1.1rem; margin-bottom: .35rem; }
.cookie-banner__inner p { font-size: .9rem; color: var(--ink-500); }
.cookie-banner__options { display: grid; gap: .75rem; margin-top: 1rem; }
.cookie-toggle { display: flex; gap: .6rem; align-items: flex-start; font-size: .88rem; color: var(--ink-600); }
.cookie-toggle input { margin-top: .2rem; accent-color: var(--blue-600); }
.cookie-banner__actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1.25rem; justify-content: flex-end; }

/* ---- Misc -------------------------------------------------------------- */
.success-mark { width: 72px; height: 72px; margin: 0 auto 1.5rem; display: grid; place-items: center; border-radius: 50%; background: rgba(22,163,74,.12); color: var(--ok); }
.success-mark .icon { width: 38px; height: 38px; stroke-width: 2.5; }
.error-code { font-family: var(--font-display); font-weight: 800; font-size: clamp(4rem, 14vw, 8rem); color: var(--blue-100); line-height: 1; display: block; }
.linklike { background: none; border: none; color: inherit; text-decoration: underline; padding: 0; }
.legal h2 { font-size: 1.3rem; margin: 2rem 0 .75rem; }
.legal p, .legal li { color: var(--ink-600); margin-bottom: .85rem; }
.legal ul { padding-left: 1.25rem; list-style: disc; }
.legal__note { font-size: .85rem; color: var(--ink-400); border-top: 1px solid var(--ink-100); padding-top: 1.25rem; margin-top: 2rem; }

/* ---- Footer ------------------------------------------------------------ */
.site-footer { background: var(--ink-900); color: var(--ink-300); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.site-footer__top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.brand--footer .logo__text { color: #fff; }
.site-footer__tagline { margin-top: 1rem; color: var(--ink-400); font-size: .92rem; max-width: 32ch; }
.site-footer__social { display: flex; gap: .5rem; margin-top: 1.25rem; }
.site-footer__social a { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,.08); color: #fff; font-weight: 700; font-size: .85rem; text-transform: uppercase; }
.site-footer__social a:hover { background: var(--blue-600); }
.site-footer__col h3 { color: #fff; font-size: .95rem; margin-bottom: 1rem; }
.site-footer__col ul { display: grid; gap: .6rem; }
.site-footer__col a, .site-footer__col li { color: var(--ink-400); font-size: .92rem; }
.site-footer__col a:hover { color: #fff; }
.site-footer__bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; padding-top: 1.75rem; font-size: .88rem; color: var(--ink-500); }
.site-footer__legal { display: flex; gap: 1.25rem; }
.site-footer__legal a, .site-footer__legal button { color: var(--ink-400); font-size: .88rem; }
.site-footer__legal a:hover, .site-footer__legal button:hover { color: #fff; }

/* ---- Responsive -------------------------------------------------------- */
@media (max-width: 1024px) {
    .card-grid, .metrics__grid, .process, .team-grid { grid-template-columns: repeat(2, 1fr); }
    .site-footer__top { grid-template-columns: 1fr 1fr; }
    .hero__inner { grid-template-columns: 1fr; }
    .hero__visual { order: -1; max-width: 460px; }
    .service-hero__inner { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .nav, .site-header__cta { display: none; }
    .hamburger { display: inline-flex; }
    .site-header.menu-open .mobile-menu { display: block; }
    .card-grid, .metrics__grid, .process, .team-grid, .cs-metrics, .split, .form-row { grid-template-columns: 1fr; }
    .section__head--row { flex-direction: column; align-items: flex-start; }
    .hero__actions .btn, .cta-band__actions .btn { flex: 1 1 auto; }
    .site-footer__top { grid-template-columns: 1fr; gap: 1.75rem; }
    .testimonial { margin-right: 0; }
    .floating-contact__btn { width: 50px; height: 50px; }
}

/* Ensure tap targets >= 44px on mobile per spec */
@media (max-width: 768px) {
    .nav__link, .mobile-menu__link, .btn, .filter-chip, .faq__question { min-height: 44px; }
}