.calc-wrapper {
    --green: #00C853;
    --green-dk: #00A844;
    --green-pale: #E8F5E9;
    --green-bg: #F5FFF7;
    --black: #111;
    --g800: #222;
    --g600: #555;
    --g500: #777;
    --g400: #999;
    --g300: #bbb;
    --g200: #ddd;
    --g150: #e8e8e8;
    --g100: #f0f0f0;
    --g50: #f7f7f7;
    --white: #fff;
    --red: #d32f2f;
    --amber: #F57C00;
    --r: 14px;
    --r-sm: 10px;

    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--black);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    padding: 32px 16px 48px;
    box-sizing: border-box;
}

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

.calc-wrapper h1 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    margin-bottom: 6px;
    color: var(--black);
}

.calc-wrapper .subtitle {
    font-size: 0.9375rem;
    color: var(--g600);
    margin-bottom: 32px;
}

/* ── Position card ── */
.calc-wrapper .positions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calc-wrapper .pos {
    background: var(--white);
    border: 1px solid var(--g200);
    border-radius: var(--r);
    padding: 22px 22px 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    position: relative;
    transition: box-shadow 0.15s;
}

.calc-wrapper .pos:hover {
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.calc-wrapper .pos__head {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.calc-wrapper .pos__label {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--g800);
}

.calc-wrapper .pos__remove {
    border: none;
    background: none;
    color: var(--g400);
    cursor: pointer;
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: inherit;
    padding: 4px 10px;
    border-radius: 6px;
    transition: background 0.15s, color 0.15s;
}

.calc-wrapper .pos__remove:hover {
    background: #fdecea;
    color: var(--red);
}

/* ── Fields grid ── */
.calc-wrapper .pos__fields {
    display: grid;
    grid-template-columns: 1fr 1.1fr auto;
    gap: 10px;
    align-items: end;
}

/* ── Input group ── */
.calc-wrapper .input-group {
    position: relative;
}

.calc-wrapper .input-group--sm {
    min-width: 124px;
}

.calc-wrapper .input-label {
    position: absolute;
    top: 8px;
    left: 14px;
    font-size: 0.6875rem;
    color: var(--g500);
    font-weight: 500;
    pointer-events: none;
    z-index: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: calc(100% - 28px);
}

.calc-wrapper .input-group--sm .input-label {
    position: static;
    margin-bottom: 5px;
    display: block;
}

.calc-wrapper .input-group input[type="text"],
.calc-wrapper .input-group input[type="email"] {
    width: 100%;
    padding: 25px 14px 9px;
    border: 1.5px solid var(--g200);
    border-radius: var(--r-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    font-weight: 500;
    color: var(--black);
    background: var(--g50);
    outline: none;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.calc-wrapper .input-group input:hover {
    border-color: var(--g300);
    background: var(--white);
}

.calc-wrapper .input-group input:focus {
    border-color: var(--green);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(0,200,83,0.1);
}

.calc-wrapper .input-group input::placeholder {
    color: var(--g300);
    font-weight: 400;
}

.calc-wrapper .input-group input.error {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(211,47,47,0.08);
}

/* ── Field warning ── */
.calc-wrapper .field-warning {
    font-size: 0.75rem;
    color: var(--amber);
    margin-top: 4px;
    line-height: 1.4;
    display: none;
}

.calc-wrapper .field-warning.visible {
    display: flex;
    align-items: flex-start;
    gap: 4px;
}

.calc-wrapper .field-warning::before {
    content: '⚠';
    font-size: 0.8125rem;
    flex-shrink: 0;
}

/* ── Stepper ── */
.calc-wrapper .stepper {
    display: flex;
}

.calc-wrapper .stepper__btn {
    width: 42px;
    height: 42px;
    border: 1.5px solid var(--g200);
    background: var(--g50);
    font-size: 1.125rem;
    color: var(--g600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.1s, color 0.1s;
    user-select: none;
}

.calc-wrapper .stepper__btn:first-child {
    border-radius: var(--r-sm) 0 0 var(--r-sm);
    border-right: none;
}

.calc-wrapper .stepper__btn:last-child {
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    border-left: none;
}

.calc-wrapper .stepper__btn:hover {
    background: var(--green-pale);
    color: var(--green-dk);
}

.calc-wrapper .stepper__btn:active {
    background: var(--green);
    color: var(--white);
}

.calc-wrapper .stepper input[type="number"] {
    width: 40px;
    height: 42px;
    border: 1.5px solid var(--g200);
    text-align: center;
    font-size: 0.9375rem;
    font-family: inherit;
    font-weight: 600;
    color: var(--black);
    outline: none;
    background: var(--white);
    -moz-appearance: textfield;
    appearance: textfield;
}

.calc-wrapper .stepper input::-webkit-inner-spin-button,
.calc-wrapper .stepper input::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

/* ── Add row ── */
.calc-wrapper .add-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 12px;
    padding: 14px;
    border: 2px dashed var(--g300);
    background: var(--white);
    border-radius: var(--r);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--g600);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.calc-wrapper .add-row:hover {
    border-color: var(--green);
    background: var(--green-bg);
    color: var(--green-dk);
}

/* ── Payment info ── */
.calc-wrapper .payment-info {
    margin-top: 24px;
    background: var(--white);
    border: 1px solid var(--g200);
    border-radius: var(--r);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.calc-wrapper .payment-info__item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.875rem;
    color: var(--g600);
    line-height: 1.45;
}

.calc-wrapper .payment-info__item strong {
    color: var(--black);
    font-weight: 600;
}

.calc-wrapper .payment-info__icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: var(--green-pale);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-dk);
}

/* ── Contact section ── */
.calc-wrapper .contact-section {
    margin-top: 24px;
    background: var(--white);
    border: 1px solid var(--g200);
    border-radius: var(--r);
    padding: 22px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    position: relative;
    overflow: hidden;
}

.calc-wrapper .contact-section__left {
    position: relative;
    z-index: 1;
}

.calc-wrapper .contact-section__illust {
    position: absolute;
    right: -30px;
    bottom: -100px;
    width: 300px;
    pointer-events: none;
}

.calc-wrapper .contact-section__illust img {
    width: 100%;
    height: auto;
    display: block;
}

.calc-wrapper .contact-section h2 {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--black);
}

.calc-wrapper .contact-hint {
    font-size: 0.8125rem;
    color: var(--g500);
    margin-bottom: 16px;
}

.calc-wrapper .contact-highlight {
    display: inline-block;
    background: var(--green-pale);
    color: var(--green-dk);
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 6px;
    margin-left: 2px;
}

.calc-wrapper .input-group--email {
    max-width: 340px;
}

/* ── Submit ── */
.calc-wrapper .submit-btn {
    display: block;
    width: 100%;
    margin-top: 24px;
    padding: 16px;
    border: none;
    border-radius: var(--r);
    background: var(--green);
    color: var(--white);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s;
}

.calc-wrapper .submit-btn:hover {
    background: var(--green-dk);
    box-shadow: 0 4px 16px rgba(0,200,83,0.25);
}

.calc-wrapper .submit-btn:active {
    transform: scale(0.997);
}

.calc-wrapper .disclaimer {
    margin-top: 12px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--g400);
}

/* ── Modal (global, fixed overlay) ── */
.overlay {
    --green: #00C853;
    --green-dk: #00A844;
    --green-pale: #E8F5E9;
    --black: #111;
    --g800: #222;
    --g600: #555;
    --g500: #777;
    --g400: #999;
    --g300: #bbb;
    --g200: #ddd;
    --g150: #e8e8e8;
    --g100: #f0f0f0;
    --g50: #f7f7f7;
    --white: #fff;
    --r: 14px;
    --r-sm: 10px;

    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 16px;
    backdrop-filter: blur(4px);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.overlay.open {
    display: flex;
}

.overlay .modal-card {
    background: var(--white);
    border-radius: var(--r);
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 16px 48px rgba(0,0,0,0.18);
}

.overlay .modal-x {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    z-index: 2;
}

.overlay .modal-x:hover { background: rgba(255,255,255,0.35); }

.overlay .modal-top {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--g150);
}

.overlay .modal-top h3 { font-size: 1.0625rem; font-weight: 700; margin: 0; }
.overlay .modal-top p { font-size: 0.8125rem; color: var(--g500); margin-top: 2px; }

.overlay .modal-body { padding: 20px; }

/* ── Email template ── */
.overlay .etpl { max-width: 500px; margin: 0 auto; }

.overlay .etpl__head {
    background: linear-gradient(135deg, rgba(0,168,68,0.92) 0%, rgba(0,80,35,0.88) 100%),
                url('https://images.unsplash.com/photo-1497366216548-37526070297c?w=800&q=80') center/cover no-repeat;
    padding: 40px 24px;
    border-radius: var(--r) var(--r) 0 0;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.overlay .etpl__head::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
}

.overlay .etpl__head::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
}

.overlay .etpl__head h4 { font-size: 1.25rem; font-weight: 700; margin: 0; position: relative; }
.overlay .etpl__head p { font-size: 0.8125rem; opacity: 0.8; margin-top: 4px; position: relative; }
.overlay .etpl__head .etpl__logo {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: 8px;
    position: relative;
}

.overlay .etpl__body {
    border: 1px solid var(--g200);
    border-top: none;
    padding: 20px;
    background: var(--white);
}

.overlay .etpl__to {
    font-size: 0.8125rem;
    color: var(--g500);
    padding-bottom: 12px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--g150);
}

.overlay .etpl__to strong { color: var(--black); }

.overlay .etpl__group {
    background: var(--g50);
    border: 1px solid var(--g150);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 8px;
}

.overlay .etpl__group-title {
    font-weight: 700;
    font-size: 0.875rem;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--g200);
}

.overlay .etpl__row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
    padding: 3px 0;
}

.overlay .etpl__row span { color: var(--g500); }
.overlay .etpl__row strong { color: var(--black); }

.overlay .etpl__total {
    text-align: center;
    background: #FFFBF0;
    border: 2px solid #F5C518;
    border-radius: 10px;
    padding: 18px;
    margin: 14px 0;
}

.overlay .etpl__total-lbl { font-size: 0.8125rem; color: var(--g600); }
.overlay .etpl__total-val { font-size: 1.625rem; font-weight: 800; color: var(--black); }

.overlay .etpl__payment {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 14px;
}

.overlay .etpl__pay-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--g50);
    border-radius: 8px;
    padding: 12px 16px;
}

.overlay .etpl__pay-label {
    font-size: 0.8125rem;
    color: var(--g600);
}

.overlay .etpl__pay-label small {
    display: block;
    font-size: 0.6875rem;
    color: var(--g400);
    font-weight: 400;
    margin-top: 1px;
}

.overlay .etpl__pay-val {
    font-size: 1rem;
    font-weight: 700;
    color: var(--black);
}

.overlay .etpl__note { font-size: 0.75rem; color: var(--g400); font-style: italic; margin-bottom: 10px; }

.overlay .etpl__cta { text-align: center; margin: 16px 0 4px; }
.overlay .etpl__cta a {
    display: inline-block;
    padding: 12px 32px;
    background: var(--green);
    color: var(--white);
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.875rem;
}

.overlay .etpl__foot {
    border: 1px solid var(--g200);
    border-top: none;
    border-radius: 0 0 var(--r) var(--r);
    padding: 14px;
    text-align: center;
    background: var(--g50);
}

.overlay .etpl__foot p { font-size: 0.6875rem; color: var(--g400); margin: 2px 0; }

/* ── Responsive ── */
@media (max-width: 600px) {
    .calc-wrapper { padding: 24px 12px 40px; }
    .calc-wrapper h1 { font-size: 1.375rem; }
    .calc-wrapper .pos { padding: 18px 16px 16px; }
    .calc-wrapper .pos__fields { grid-template-columns: 1fr; align-items: stretch; }
    .calc-wrapper .input-group--sm { min-width: unset; }
    .calc-wrapper .input-group--email { max-width: 100%; }
    .calc-wrapper .contact-section__illust { width: 180px; bottom: -120px; right: 4px; }
    .overlay .etpl__payment { gap: 6px; }
    .overlay .modal-top { padding: 20px 18px 14px; }
    .overlay .modal-body { padding: 16px; }
}