/* Unicelso - informational website */
:root {
    --clr-primary: #1f6fb2;
    --clr-primary-dk: #0f4f8f;
    --clr-accent: #6bb7e8;
    --clr-dark: #071526;
    --clr-dark-mid: #0c2d4f;
    --clr-text: #1d2b3a;
    --clr-text-muted: #66788a;
    --clr-text-light: #eaf4ff;
    --clr-bg-white: #ffffff;
    --clr-bg-gray: #f3f7fb;
    --clr-border: #dce6ef;
    --clr-success: #1f9d61;
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --shadow-sm: 0 1px 3px rgba(7,21,38,.08);
    --shadow-md: 0 8px 28px rgba(7,21,38,.10);
    --shadow-lg: 0 20px 60px rgba(7,21,38,.14);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --header-h: 72px;
    --transition: .25s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--clr-text);
    background: var(--clr-bg-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5 {
    margin: 0;
    font-family: var(--font-display);
    line-height: 1.15;
    color: inherit;
}
p { margin: 0 0 1rem; }
a { color: var(--clr-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--clr-primary-dk); }
img, svg { display: block; max-width: 100%; }

.container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}
.section { padding: 96px 0; }
.section-light { background: var(--clr-bg-white); }
.section-gray { background: var(--clr-bg-gray); }

.section-label {
    margin-bottom: .75rem;
    text-align: center;
    font-family: var(--font-display);
    font-size: .75rem;
    font-weight: 700;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: .12em;
}
.section-label.light { color: var(--clr-accent); }
.section-label.align-left { text-align: left; }
.section-title {
    max-width: 860px;
    margin: 0 auto 1rem;
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}
.section-title.light { color: var(--clr-text-light); }
.section-title.left { margin-left: 0; text-align: left; }
.section-subtitle {
    max-width: 760px;
    margin: 0 auto 2.75rem;
    text-align: center;
    color: var(--clr-text-muted);
    font-size: 1.08rem;
}
.section-subtitle.light { color: rgba(234,244,255,.78); }
.section-subtitle.left { margin-left: 0; text-align: left; }
.section-text {
    max-width: 760px;
    margin: 0 auto 2.75rem;
    text-align: center;
    color: var(--clr-text-muted);
    font-size: 1.08rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: .78rem 1.55rem;
    border: 2px solid transparent;
    border-radius: 999px;
    font-family: var(--font-display);
    font-size: .95rem;
    font-weight: 700;
    white-space: nowrap;
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(31,111,178,.22);
}
.btn-primary:hover { background: var(--clr-primary-dk); border-color: var(--clr-primary-dk); color: #fff; }
.btn-outline {
    background: transparent;
    border-color: rgba(255,255,255,.42);
    color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.72); color: #fff; }
.btn-large { min-height: 50px; padding: .95rem 2.1rem; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    height: var(--header-h);
    overflow: hidden;
    background: rgba(7,21,38,.18);
    border-bottom: 1px solid rgba(255,255,255,.10);
    box-shadow: 0 1px 0 rgba(255,255,255,.03);
    backdrop-filter: blur(14px);
    transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.site-header::before {
    content: '';
    position: absolute;
    inset: -42px 0;
    z-index: -1;
    background:
        radial-gradient(circle at 16% 50%, rgba(255,255,255,.26) 0 5%, transparent 12%),
        radial-gradient(circle at 42% 18%, rgba(107,183,232,.30) 0 7%, transparent 18%),
        radial-gradient(circle at 66% 62%, rgba(31,111,178,.28) 0 8%, transparent 20%),
        radial-gradient(circle at 86% 34%, rgba(255,255,255,.18) 0 5%, transparent 14%);
    filter: blur(22px);
    transform: scale(1.12);
    animation: header-bokeh 10s ease-in-out infinite alternate;
    opacity: .78;
}
.site-header.scrolled {
    background: rgba(7,21,38,.70);
    border-color: rgba(255,255,255,.14);
    box-shadow: 0 10px 36px rgba(0,0,0,.16);
}
@keyframes header-bokeh {
    0% {
        transform: translate3d(-2%, -4px, 0) scale(1.12);
        opacity: .62;
    }
    100% {
        transform: translate3d(2%, 5px, 0) scale(1.18);
        opacity: .86;
    }
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: var(--header-h);
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: .75rem;
    flex-shrink: 0;
    color: #fff;
}
.logo-mark {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: #fff;
    color: var(--clr-primary-dk);
    font-family: var(--font-display);
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(0,0,0,.14);
}
.logo-text {
    color: #fff;
    font-family: var(--font-display);
    font-size: 1.18rem;
    font-weight: 700;
}
#main-nav {
    display: flex;
    justify-content: center;
    flex: 1;
}
#main-nav ul {
    display: flex;
    gap: .25rem;
    padding: 0;
    margin: 0;
    list-style: none;
}
#main-nav a {
    display: block;
    padding: .5rem .9rem;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,.76);
    font-size: .92rem;
    font-weight: 600;
}
#main-nav a:hover,
#main-nav a.current { color: #fff; background: rgba(255,255,255,.09); }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.lang-switcher {
    display: inline-flex;
    align-items: center;
    gap: .18rem;
    padding: .22rem;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 999px;
    background: rgba(255,255,255,.08);
}
.lang-switcher a {
    min-width: 34px;
    padding: .25rem .45rem;
    border-radius: 999px;
    color: rgba(255,255,255,.62);
    font-family: var(--font-display);
    font-size: .72rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: .04em;
}
.lang-switcher a:hover,
.lang-switcher a.active {
    color: var(--clr-primary-dk);
    background: rgba(255,255,255,.92);
}
.hamburger {
    display: none;
    width: 28px;
    height: 20px;
    margin-left: auto;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}
.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    margin-bottom: 7px;
    border-radius: 999px;
    background: #fff;
    transition: transform var(--transition), opacity var(--transition);
}
.hamburger span:last-child { margin-bottom: 0; }
.hamburger.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-h);
    overflow: hidden;
}
.unicelso-hero,
.parallax-hero {
    background:
        radial-gradient(circle at 78% 24%, rgba(107,183,232,.20), transparent 28%),
        linear-gradient(135deg, #071526 0%, #0f3761 54%, #0b223b 100%);
}
.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.hero-particles::before,
.hero-particles::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .18;
}
.hero-particles::before { width: 520px; height: 520px; top: -180px; right: -120px; background: var(--clr-accent); }
.hero-particles::after { width: 360px; height: 360px; bottom: -120px; left: 8%; background: var(--clr-primary); }
.hero-particles {
    background:
        linear-gradient(120deg, transparent 0 18%, rgba(255,255,255,.055) 18% 19%, transparent 19% 100%),
        linear-gradient(60deg, transparent 0 72%, rgba(107,183,232,.08) 72% 73%, transparent 73% 100%);
    background-size: 180px 180px, 220px 220px;
    animation: blueprint-drift 18s linear infinite;
}
@keyframes blueprint-drift {
    from { background-position: 0 0, 0 0; }
    to { background-position: 180px 90px, -220px 110px; }
}
.hero-inner {
    position: relative;
    z-index: 1;
    display: block;
    align-items: center;
    padding: 96px 0 104px;
}
.hero-content {
    position: relative;
    max-width: 880px;
    color: var(--clr-text-light);
}
.hero-content::before {
    content: '';
    position: absolute;
    inset: -70px auto auto -48px;
    z-index: -1;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(107,183,232,.16);
    filter: blur(70px);
}
.hero-title {
    margin-bottom: 1rem;
    font-size: clamp(3.5rem, 7vw, 6rem);
    font-weight: 700;
    line-height: 1.02;
    background: linear-gradient(135deg, #fff 0%, #d7edff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    margin-bottom: .85rem;
    color: rgba(234,244,255,.86);
    font-size: clamp(1.15rem, 2.2vw, 1.45rem);
    font-weight: 600;
    line-height: 1.38;
}
.hero-text {
    max-width: 680px;
    margin-bottom: 2.25rem;
    color: rgba(234,244,255,.66);
    font-size: 1.08rem;
}
.hero-btns { display: flex; flex-wrap: wrap; gap: 1rem; }
.scroll-indicator {
    position: absolute;
    left: 50%;
    bottom: 28px;
    z-index: 2;
    color: rgba(255,255,255,.45);
    transform: translateX(-50%);
}


.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}
.stat-item {
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    background: var(--clr-bg-gray);
}
.stat-num {
    display: block;
    margin-bottom: .45rem;
    color: var(--clr-primary);
    font-family: var(--font-display);
    font-size: clamp(2.3rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1;
}
.stat-lbl { color: var(--clr-text-muted); font-weight: 600; }

.modules-grid,
.features-grid {
    display: grid;
    gap: 1.5rem;
    margin-top: 3rem;
}
.modules-grid { grid-template-columns: repeat(4, 1fr); }
.features-grid { grid-template-columns: repeat(4, 1fr); }
.module-card {
    min-height: 260px;
    padding: 2rem 1.5rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    background: #fff;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.module-card:hover {
    transform: translateY(-4px);
    border-color: var(--clr-primary);
    box-shadow: var(--shadow-lg);
}
.module-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    border-radius: 10px;
    color: var(--clr-primary);
    background: rgba(31,111,178,.10);
}
.module-icon svg { width: 28px; height: 28px; }
.module-card h3 { margin-bottom: .75rem; font-size: 1.12rem; }
.module-card p { color: var(--clr-text-muted); font-size: .95rem; }

.parallax-dark {
    background:
        linear-gradient(rgba(7,21,38,.94), rgba(7,21,38,.94)),
        radial-gradient(circle at 20% 20%, rgba(107,183,232,.20), transparent 34%),
        var(--clr-dark);
}
.features-section { padding: 108px 0; }
.feature-item {
    padding: 1.7rem;
    border: 1px solid rgba(255,255,255,.10);
    border-radius: var(--radius);
    background: rgba(255,255,255,.045);
}
.feature-item h4 { margin-bottom: .55rem; color: var(--clr-text-light); font-size: 1.05rem; }
.feature-item p { color: rgba(234,244,255,.68); font-size: .94rem; }
.step-num {
    display: block;
    margin-bottom: .75rem;
    color: var(--clr-accent);
    font-family: var(--font-display);
    font-size: .85rem;
    font-weight: 700;
}

.youtube-panel {
    max-width: 720px;
    margin: 2.25rem auto 0;
}
.youtube-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    min-height: 180px;
    overflow: hidden;
    border: 1px solid rgba(31,111,178,.18);
    border-radius: 14px;
    background:
        radial-gradient(circle at 22% 28%, rgba(107,183,232,.28), transparent 32%),
        linear-gradient(135deg, #071526 0%, #0f4f8f 100%);
    box-shadow: var(--shadow-lg);
    color: #fff;
}
.youtube-card::before {
    content: '';
    position: absolute;
    inset: -80px;
    background:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,.22), transparent 16%),
        radial-gradient(circle at 72% 62%, rgba(107,183,232,.24), transparent 20%);
    filter: blur(18px);
    animation: soft-bokeh 8s ease-in-out infinite alternate;
}
@keyframes soft-bokeh {
    from { transform: translate3d(-12px, -8px, 0) scale(1); opacity: .72; }
    to { transform: translate3d(14px, 10px, 0) scale(1.08); opacity: .95; }
}
.youtube-play {
    position: relative;
    z-index: 1;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(255,255,255,.92);
    box-shadow: 0 16px 38px rgba(0,0,0,.20);
}
.youtube-play::after {
    content: '';
    position: absolute;
    left: 29px;
    top: 22px;
    width: 0;
    height: 0;
    border-top: 13px solid transparent;
    border-bottom: 13px solid transparent;
    border-left: 18px solid var(--clr-primary-dk);
}
.youtube-copy {
    position: relative;
    z-index: 1;
    display: grid;
    gap: .25rem;
}
.youtube-copy strong {
    color: #fff;
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}
.youtube-copy small {
    color: rgba(234,244,255,.72);
    font-weight: 700;
}
.youtube-card:hover {
    color: #fff;
    transform: translateY(-2px);
}

.contact-layout {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 3rem;
    align-items: start;
}
.contact-copy { padding-top: 1rem; }
.contact-list {
    display: grid;
    gap: .85rem;
    padding: 0;
    margin: 1.5rem 0 0;
    list-style: none;
    color: var(--clr-text-muted);
}
.contact-list strong { color: var(--clr-text); }
.contact-form {
    padding: 2rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-md);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    margin-bottom: .45rem;
    color: var(--clr-text);
    font-size: .88rem;
    font-weight: 700;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: .82rem 1rem;
    border: 1.5px solid var(--clr-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--clr-text);
    font: inherit;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(31,111,178,.14);
}
.form-group textarea { min-height: 132px; resize: vertical; }
.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}
.form-submit { display: flex; justify-content: flex-end; }
.form-feedback {
    display: none;
    margin-top: 1rem;
    padding: .85rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
}
.form-feedback.success { display: block; color: #0f6b3f; background: rgba(31,157,97,.12); }
.form-feedback.error { display: block; color: #a33a30; background: rgba(220,70,57,.12); }

.site-footer {
    padding-top: 4rem;
    background: var(--clr-dark);
    color: rgba(234,244,255,.70);
}
.footer-inner {
    display: grid;
    grid-template-columns: minmax(240px, 1fr) 2fr;
    gap: 4rem;
    padding-bottom: 3rem;
}
.footer-brand p { max-width: 320px; margin-top: 1rem; font-size: .94rem; }
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.footer-col h5 {
    margin-bottom: 1rem;
    color: rgba(234,244,255,.42);
    font-size: .78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
}
.footer-col ul {
    display: grid;
    gap: .6rem;
    padding: 0;
    margin: 0;
    list-style: none;
}
.footer-col a { color: rgba(234,244,255,.62); font-size: .92rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
    padding: 1.4rem 0;
    border-top: 1px solid rgba(255,255,255,.08);
}
.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}
.footer-bottom p { margin: 0; color: rgba(234,244,255,.38); font-size: .85rem; }

.back-to-top {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 900;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 50%;
    background: var(--clr-primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(31,111,178,.28);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity var(--transition), transform var(--transition);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

.subpage-hero {
    padding: calc(var(--header-h) + 4rem) 0 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-dark-mid) 100%);
}
.faq-list {
    max-width: 820px;
    display: grid;
    gap: .8rem;
    margin: 0 auto;
}
.faq-item {
    overflow: hidden;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    background: #fff;
}
.faq-item summary {
    position: relative;
    padding: 1.15rem 3rem 1.15rem 1.4rem;
    font-family: var(--font-display);
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '';
    position: absolute;
    right: 1.3rem;
    top: 50%;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--clr-primary);
    border-bottom: 2px solid var(--clr-primary);
    transform: translateY(-70%) rotate(45deg);
    transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq-answer {
    padding: 0 1.4rem 1.2rem;
    border-top: 1px solid var(--clr-border);
    color: var(--clr-text-muted);
}
.faq-answer p { margin-top: .8rem; }
.prose {
    max-width: 820px;
    margin: 0 auto;
}
.prose h2 {
    margin: 2rem 0 .7rem;
    padding-bottom: .35rem;
    border-bottom: 1px solid var(--clr-border);
    font-size: 1.35rem;
}
.prose p,
.prose li { color: var(--clr-text-muted); line-height: 1.78; }
.prose .effective-date {
    padding: .8rem 1rem;
    border-left: 4px solid var(--clr-primary);
    border-radius: var(--radius-sm);
    background: var(--clr-bg-gray);
}

.animate-fade-up,
.animate-fade-left,
.animate-fade-right {
    opacity: 0;
    transition: opacity .7s ease, transform .7s ease;
}
.animate-fade-up { transform: translateY(28px); }
.animate-fade-left { transform: translateX(36px); }
.animate-fade-right { transform: translateX(-36px); }
.animate-fade-up.visible,
.animate-fade-left.visible,
.animate-fade-right.visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
    .modules-grid,
    .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    :root { --header-h: 64px; }
    .hero-inner {
        text-align: center;
        padding: 64px 0 88px;
    }
    .hero-text { margin-left: auto; margin-right: auto; }
    .hero-content { margin: 0 auto; }
    .hero-btns { justify-content: center; }
    .stats-row,
    .contact-layout { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 2.5rem; }
}
@media (max-width: 768px) {
    .container { width: min(100% - 32px, 1180px); }
    .section { padding: 72px 0; }
    .features-section { padding: 80px 0; }
    .modules-grid,
    .features-grid,
    .form-row { grid-template-columns: 1fr; }
    .header-actions .nav-cta { display: none; }
    .hamburger { display: block; }
    #main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        display: block;
        padding: 1rem;
        border-top: 1px solid rgba(255,255,255,.08);
        background: rgba(7,21,38,.98);
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition), opacity var(--transition);
    }
    #main-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    #main-nav ul { flex-direction: column; }
    #main-nav a { padding: .85rem 1rem; font-size: 1rem; }
    .footer-links { grid-template-columns: 1fr; }
    .contact-form { padding: 1.25rem; }
}
@media (max-width: 480px) {
    .hero-title { font-size: 3rem; }
}