:root {
    --ch-primary: #4b6bfb;
    --ch-secondary: #4bccfb;
    --ch-primary-soft: rgba(75, 107, 251, 0.06);
    --ch-focus: rgba(75, 107, 251, 0.45);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    margin: 0;
    min-height: 100vh;
    color: #0f172a;
    background:
        radial-gradient(circle at 0% 0%, rgba(75, 107, 251, 0.12), transparent 55%),
        radial-gradient(circle at 100% 100%, rgba(32, 201, 151, 0.12), transparent 55%),
        #f5f7fb;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
    overflow-x: hidden;
}

img,
svg,
video,
canvas {
    max-width: 100%;
    height: auto;
}

a,
button,
input,
select,
textarea {
    touch-action: manipulation;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--ch-focus);
    outline-offset: 2px;
}

.skip-link {
    position: fixed;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 1100;
    padding: 0.5rem 0.85rem;
    border-radius: 0.55rem;
    background: #0f172a;
    color: #ffffff;
    font-size: 0.9rem;
    text-decoration: none;
    transform: translateY(-150%);
    transition: transform 0.2s ease;
}

.skip-link:focus-visible {
    transform: translateY(0);
}

.site-wrapper {
    min-height: 100vh;
    overflow-x: hidden;
    padding-bottom: env(safe-area-inset-bottom);
}

header.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.site-header-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 0.65rem;
    row-gap: 0.25rem;
}

.site-brand {
    min-width: 0;
    display: inline-flex;
    align-items: center;
}

.brand-logo-img {
    display: block;
    width: clamp(132px, 34vw, 220px);
    height: auto;
    max-width: 100%;
}

.locale-container {
    min-width: 0;
    justify-self: end;
}

.language-switcher {
    width: auto;
}

.language-select {
    min-height: 44px;
    font-size: 16px;
    min-width: 132px;
    max-width: 44vw;
}

main.ch-main {
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
}

.ch-main > .container {
    padding-left: max(0.75rem, env(safe-area-inset-left));
    padding-right: max(0.75rem, env(safe-area-inset-right));
}

@media (min-width: 576px) {
    .brand-logo-img {
        width: clamp(162px, 24vw, 232px);
    }

    .language-select {
        min-width: 185px;
        max-width: none;
    }
}

@media (min-width: 768px) {
    main.ch-main {
        padding-top: 2.5rem;
        padding-bottom: 2.5rem;
    }
}

.home-hero-title {
    font-size: clamp(1.7rem, 7vw, 3rem);
    line-height: 1.12;
    letter-spacing: 0.01em;
    overflow-wrap: anywhere;
}

.home-hero-subtitle {
    font-size: clamp(1rem, 3.8vw, 1.25rem);
    max-width: 70ch;
    overflow-wrap: anywhere;
}

.home-hero-pill {
    max-width: 100%;
    flex-wrap: wrap;
}

.home-calc-card .btn {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.home-calc-card h2,
.home-calc-card p,
.home-seo-card p {
    overflow-wrap: anywhere;
}

.calculator-card {
    border-radius: 1.5rem;
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow:
        0 18px 45px rgba(15, 23, 42, 0.14),
        0 0 0 1px rgba(255, 255, 255, 0.9);
    background:
        radial-gradient(circle at 0 0, var(--ch-primary-soft), transparent 60%),
        #ffffff;
}

.extended-description-card {
    margin-top: 1rem;
    border-radius: 1.5rem;
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow:
        0 18px 45px rgba(15, 23, 42, 0.14),
        0 0 0 1px rgba(255, 255, 255, 0.9);
    background:
        radial-gradient(circle at 0 0, var(--ch-primary-soft), transparent 60%),
        #ffffff;
}

.extended-description-card .card-body,
.extended-description-card p,
.extended-description-card li,
.faq-answer {
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.extended-description-card p:last-child {
    margin-bottom: 0;
}

.calculator-card-header {
    border-bottom: none;
    padding-bottom: 0;
}

.calculator-breadcrumb .breadcrumb {
    margin-bottom: 0;
}

.calculator-breadcrumb .breadcrumb-item {
    overflow-wrap: anywhere;
}

.calculator-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.15rem 0.7rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.03);
    border: 1px solid rgba(148, 163, 184, 0.5);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #6b7280;
    overflow-wrap: anywhere;
}

.calculator-pill-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--ch-primary);
}

.calculator-pill-dot-secondary {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--ch-secondary);
}

.calculator-title {
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
    font-size: clamp(1.2rem, 4.8vw, 1.55rem);
    font-weight: 700;
    letter-spacing: 0.01em;
    color: #0f172a;
    overflow-wrap: anywhere;
}

.calculator-description {
    font-size: 0.95rem;
    color: #6b7280;
    margin-bottom: 1.25rem;
    overflow-wrap: anywhere;
}

.calculator-result {
    border-radius: 0.9rem;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.12), rgba(59, 130, 246, 0.12));
    border: 1px solid rgba(34, 197, 94, 0.4);
    padding: 0.85rem 1rem;
    font-size: 0.92rem;
}

.calculator-result-label {
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: #15803d;
    margin-bottom: 0.18rem;
}

.calculator-result-value {
    font-weight: 600;
    color: #064e3b;
    overflow-wrap: anywhere;
}

.calculator-form {
    margin-top: 1.25rem;
}

.calculator-form form > div {
    margin-bottom: 0.7rem;
}

.calculator-form label,
.calculator-form legend {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.35rem;
    color: #1f2937;
}

.calculator-form .form-control,
.calculator-form .form-select,
.calculator-form input[type="number"],
.calculator-form input[type="text"],
.calculator-form input[type="date"],
.calculator-form input[type="email"],
.calculator-form textarea {
    min-height: 48px;
    border-radius: 0.75rem;
    font-size: 16px;
}

.calculator-form textarea {
    min-height: 110px;
}

.calculator-form .form-check {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.calculator-form .form-check-input {
    width: 1.1rem;
    height: 1.1rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.calculator-submit {
    margin-top: 0.35rem;
}

.calculator-submit button,
.calculator-submit input[type="submit"],
.calculator-submit .btn,
.calculator-form button[type="submit"],
.calculator-form input[type="submit"] {
    min-height: 48px;
    border-radius: 999px;
    font-weight: 600;
    padding-inline: 1.4rem;
}

footer.site-footer {
    border-top: 1px solid rgba(148, 163, 184, 0.4);
    background: rgba(255, 255, 255, 0.95);
    font-size: 0.82rem;
    color: #6b7280;
    padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
}

@media (max-width: 767.98px) {
    .calculator-form button[type="submit"],
    .calculator-form input[type="submit"] {
        width: 100%;
    }
}

@media (max-width: 575.98px) {
    .brand-logo-img {
        width: clamp(132px, 41vw, 170px);
    }

    .home-hero-card,
    .home-calc-card,
    .calculator-card,
    .extended-description-card {
        border-radius: 1rem !important;
    }

    .home-hero-glow {
        opacity: 0.16 !important;
        transform: scale(0.88);
    }

    .home-calc-card .card-body,
    .home-seo-card {
        padding: 1rem !important;
    }

    .calculator-card .card-body,
    .extended-description-card .card-body {
        padding: 1rem !important;
    }

    .calculator-pill {
        font-size: 0.62rem;
        letter-spacing: 0.06em;
        padding: 0.12rem 0.58rem;
    }

    .calculator-description {
        margin-bottom: 1rem;
    }

    .calculator-form {
        margin-top: 1rem;
    }
}