:root {
    --brand-primary: #00a19c;
    --brand-primary-hover: #003237;
    --brand-muted-bg: rgba(0, 177, 169, 0.1);
    --brand-muted-border: rgba(0, 177, 169, 0.28);
    --brand-focus-ring: rgba(0, 177, 169, 0.2);
    --text-heading: #2d3436;
    --text-body: #565f64;
    --surface: #ffffff;
    --border: #e2e8f0;
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    height: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100%;
    min-height: 100dvh;
    font-family: var(--font-base);
    font-size: 15px;
    color: var(--text-body);
    background: linear-gradient(145deg, #ecfaf9 0%, #eef6f6 45%, #eef2ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
    padding-top: max(1rem, env(safe-area-inset-top));
    padding-bottom: max(1rem, env(safe-area-inset-bottom));
    overflow-x: hidden;
}

.page {
    width: 100%;
    max-width: 32rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(0, 50, 55, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.card__header {
    padding: 1.25rem 1.5rem 1rem;
    border-bottom: 3px solid transparent;
    border-image: linear-gradient(to right, var(--brand-primary), var(--brand-primary-hover)) 1;
    background: #fff;
    text-align: center;
}

.card__logo {
    display: block;
    height: 2.25rem;
    width: auto;
    margin: 0 auto 0.75rem;
}

.card__title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-heading);
}

.card__subtitle {
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    color: var(--brand-primary);
    font-weight: 500;
}

.card__body {
    padding: 1rem 1.25rem 1.25rem;
}

.field {
    position: relative;
    margin-bottom: 0.625rem;
    padding: 0.75rem 3.25rem 0.75rem 0.875rem;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 0.625rem;
    border-left: 3px solid var(--brand-primary);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field:hover {
    border-color: var(--brand-muted-border);
    box-shadow: 0 2px 8px rgba(0, 161, 156, 0.08);
}

.field__label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-heading);
    margin-bottom: 0.25rem;
}

.field__value {
    font-size: 0.9375rem;
    line-height: 1.45;
    color: var(--text-heading);
    word-break: break-word;
}

.field__value a {
    color: var(--brand-primary);
    text-decoration: none;
    font-weight: 500;
}

.field__value a:hover {
    text-decoration: underline;
    color: var(--brand-primary-hover);
}

.copy-btn {
    position: absolute;
    top: 50%;
    right: 0.5rem;
    transform: translateY(-50%);
    border: 1px solid var(--brand-muted-border);
    background: var(--brand-muted-bg);
    color: var(--brand-primary-hover);
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.35rem 0.6rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.copy-btn:hover {
    background: rgba(0, 177, 169, 0.18);
    border-color: var(--brand-primary);
}

.copy-btn:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

.copy-btn.is-copied {
    background: #ecfdf5;
    border-color: #6ee7b7;
    color: #047857;
}

.card__actions {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid #f1f5f9;
    text-align: center;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(to right, var(--brand-primary), var(--brand-primary-hover));
    border: none;
    border-radius: 0.625rem;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 161, 156, 0.25);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0, 161, 156, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.card__footer {
    padding: 0.75rem 1.25rem 1rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-body);
    border-top: 1px solid #f1f5f9;
    background: #fafbfc;
}

.card__footer a {
    color: var(--brand-primary);
    font-weight: 500;
    text-decoration: none;
}

.card__footer a:hover {
    text-decoration: underline;
}

.toast {
    position: fixed;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%) translateY(0.5rem);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background: var(--brand-primary-hover);
    border-radius: 9999px;
    box-shadow: 0 8px 24px rgba(0, 50, 55, 0.2);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1000;
}

.toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(0, 50, 55, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal__panel {
    width: 100%;
    max-width: 22rem;
    background: var(--surface);
    border-radius: 1rem;
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.modal__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: linear-gradient(to right, var(--brand-primary), var(--brand-primary-hover));
    color: #fff;
}

.modal__head h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal__close {
    width: 2rem;
    height: 2rem;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 1.35rem;
    line-height: 1;
    border-radius: 0.5rem;
    cursor: pointer;
}

.modal__close:hover {
    background: rgba(255, 255, 255, 0.25);
}

.modal__body {
    padding: 1.5rem;
    text-align: center;
}

.modal__qr img {
    display: block;
    width: 12.5rem;
    height: 12.5rem;
    margin: 0 auto;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
}

.modal__qr-caption {
    margin-top: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-heading);
}

@media (max-width: 480px) {
    body {
        align-items: flex-start;
        padding: 0.5rem;
    }

    .card__header {
        padding: 1rem;
    }

    .card__logo {
        height: 1.625rem;
    }

    .card__title {
        font-size: 1.1rem;
    }

    .card__body {
        padding: 0.75rem;
    }

    .field {
        padding: 0.625rem 3rem 0.625rem 0.75rem;
        margin-bottom: 0.5rem;
    }

    .field__value {
        font-size: 0.8125rem;
    }

    .copy-btn {
        font-size: 0.625rem;
        padding: 0.3rem 0.45rem;
    }
}