:root {
    --app-max-code-height: 36rem;
}

html,
body {
    min-height: 100%;
}

body {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    background: var(--bs-tertiary-bg);
}

.app-header,
.app-footer {
    background: var(--bs-body-bg);
}

.brand-icon {
    display: grid;
    width: 3rem;
    height: 3rem;
    flex: 0 0 3rem;
    place-items: center;
    border-radius: 0.9rem;
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-size: 1.35rem;
}

.language-dropdown {
    min-width: 13rem;
}

.main-card {
    border: 0;
    overflow: hidden;
}

.nav-pills .nav-link {
    min-height: 2.85rem;
    font-weight: 600;
}

.section-title {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.step-number {
    display: inline-grid;
    width: 2rem;
    height: 2rem;
    flex: 0 0 2rem;
    place-items: center;
    border-radius: 50%;
    background: var(--bs-primary);
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
}

.code-area {
    min-height: 8rem;
    max-height: var(--app-max-code-height);
    resize: vertical;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.86rem;
    line-height: 1.55;
    tab-size: 2;
}

.output-area {
    background: var(--bs-secondary-bg);
}

.crypto-meta,
.security-note {
    border: 1px solid var(--bs-border-color);
    background: var(--bs-body-bg);
}

.security-note > .d-flex > i {
    color: var(--bs-primary);
    font-size: 1.15rem;
}

.footer-toggle {
    color: var(--bs-secondary-color);
}

.footer-toggle:hover,
.footer-toggle:focus {
    color: var(--bs-emphasis-color);
}

.form-control:focus,
.btn:focus-visible,
.dropdown-item:focus-visible {
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.18);
}

.btn-lg {
    min-height: 3.15rem;
}

@media (max-width: 767.98px) {
    main.container-xl {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .app-header .container-xl,
    .app-footer .container-xl {
        padding-left: 0.9rem;
        padding-right: 0.9rem;
    }

    .language-dropdown {
        width: 100%;
        min-width: 0;
    }

    .main-card .card-body {
        padding-left: 0.85rem;
        padding-right: 0.85rem;
    }

    .code-area {
        font-size: 0.8rem;
        min-height: 10rem;
    }

    .nav-pills .nav-link {
        padding-left: 0.6rem;
        padding-right: 0.6rem;
    }

    .alert {
        padding: 0.8rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}