:root {
    --color-primary: #C8102E;
    --color-primary-dark: #9C0C22;
    --color-accent: #E4A400;
    --color-accent-light: #FFC800;
    --color-bg: #F5F3EE;
    --color-card: #FFFFFF;
    --color-text: #2B2622;
    --color-text-muted: #6B6459;
    --color-border: #E4DFD3;
    --color-success: #1E8E3E;
    --color-error: #C8102E;
    --radius: 12px;
    --shadow: 0 2px 8px rgba(43, 38, 34, 0.08);
    font-size: 17px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-tap-highlight-color: transparent;
}

.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-main {
    flex: 1;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    padding: 16px 16px 32px;
}

.back-arrow-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--color-card);
    box-shadow: var(--shadow);
    color: var(--color-text);
    font-size: 1.2rem;
    cursor: pointer;
    margin-bottom: 12px;
}
.back-arrow-btn:hover { background: #F0ECE3; }

/* ---------- Login ---------- */
.login-page {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}

.login-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 24px;
    width: 100%;
    max-width: 360px;
    text-align: center;
}
.login-card__logo { width: 56px; height: 56px; margin-bottom: 12px; }
.login-card h1 { font-size: 1.3rem; margin: 0 0 4px; }
.login-card__hint { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 20px; }
.login-card__footnote { margin-top: 18px; font-size: 0.78rem; color: var(--color-text-muted); }
.login-card__error {
    background: #FDEAEC;
    color: var(--color-error);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.85rem;
    margin: 12px 0;
    text-align: left;
}

.text-input-wrap { margin-bottom: 14px; text-align: left; }
.text-input-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}
.text-input {
    width: 100%;
    font-size: 1rem;
    padding: 12px 14px;
    border-radius: var(--radius);
    border: 2px solid var(--color-border);
    outline: none;
    text-transform: uppercase;
}
.text-input:focus { border-color: var(--color-primary); }
.text-input--large {
    font-size: 1.4rem;
    letter-spacing: 0.03em;
    text-align: center;
    padding: 14px 16px;
}

.pin-input-wrap { position: relative; margin-bottom: 16px; text-align: left; }
.pin-input {
    width: 100%;
    font-size: 1.6rem;
    letter-spacing: 0.4em;
    text-align: center;
    padding: 14px 48px 14px 16px;
    border-radius: var(--radius);
    border: 2px solid var(--color-border);
    outline: none;
}
.pin-input:focus { border-color: var(--color-primary); }
.pin-input__toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius);
    padding: 13px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: filter 0.15s ease, opacity 0.15s ease;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn--block { width: 100%; }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn--secondary { background: #F0ECE3; color: var(--color-text); }
.btn--secondary:hover:not(:disabled) { filter: brightness(0.97); }

.link-btn {
    background: none;
    border: none;
    color: var(--color-primary-dark);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    padding: 4px;
}

/* ---------- Dealer info card ---------- */
.dealer-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-bottom: 16px;
    border-left: 4px solid var(--color-accent-light);
}
.dealer-card__row { display: flex; justify-content: space-between; align-items: flex-start; }
.dealer-card__label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-text-muted); }
.dealer-card__value { font-size: 1.15rem; font-weight: 700; }
.dealer-card__grid {
    margin-top: 12px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    font-size: 0.85rem;
}
.dealer-card__grid > div { display: flex; flex-direction: column; gap: 2px; }

.badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 999px;
    white-space: nowrap;
}
.badge--premier { background: var(--color-accent-light); color: #4A3800; }
.badge--pioneer { background: #DCEBE3; color: #1E5A3E; }
.badge--normal { background: #E9E5DB; color: var(--color-text-muted); }

/* ---------- Form cards ---------- */
.form-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-bottom: 14px;
}
.form-card__header-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.form-card__label { font-weight: 600; font-size: 0.9rem; }
.form-card__title { font-size: 1.05rem; margin: 0 0 4px; }
.form-card__subtitle {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin: 14px 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.form-card__subtitle:first-of-type { margin-top: 4px; }
.form-card__hint { font-size: 0.8rem; color: var(--color-text-muted); margin: 0 0 10px; }
.form-card__notice {
    font-size: 0.82rem;
    background: #FFF6DE;
    color: #6B4E00;
    border-radius: 8px;
    padding: 8px 10px;
    margin-top: 8px;
}

/* ---------- Month calendar ---------- */
.month-calendar {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    flex-wrap: wrap;
    max-width: 320px;
}
.month-calendar__panel { flex: 1 1 220px; min-width: 200px; max-width: 240px; }
.month-calendar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}
.month-calendar__title { font-weight: 700; font-size: 0.82rem; }
.month-calendar__nav-btn {
    border: none;
    background: #F0ECE3;
    color: var(--color-text);
    width: 24px; height: 24px;
    border-radius: 50%;
    font-size: 0.95rem;
    line-height: 1;
    cursor: pointer;
}
.month-calendar__nav-btn:hover { background: #E4DFD3; }

.month-calendar__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}
.month-calendar__weekday {
    text-align: center;
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--color-text-muted);
    padding-bottom: 2px;
}
.month-calendar__day {
    position: relative;
    aspect-ratio: 1;
    max-height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text);
    background: #F5F3EE;
    appearance: none;
    -webkit-appearance: none;
    overflow: visible;
    padding: 0;
}
.month-calendar__day--empty { visibility: hidden; cursor: default; }
.month-calendar__day--future {
    color: var(--color-text-muted);
    opacity: 0.5;
    cursor: not-allowed;
}
.month-calendar__day--selected { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.month-calendar__day--today { box-shadow: inset 0 0 0 1.5px var(--color-text-muted); }
.month-calendar__day:disabled { cursor: not-allowed; }

.month-calendar__day-dot {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: block;
    z-index: 2;
}
.month-calendar__day-dot--filled { background: var(--color-success); }
.month-calendar__day-dot--unfilled { background: var(--color-primary); }
.month-calendar__day-num { pointer-events: none; }

.month-calendar__legend {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 24px;
    flex: 0 0 auto;
}
.month-calendar__legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.76rem;
    color: var(--color-text-muted);
    font-weight: 600;
}
.month-calendar__legend-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.month-calendar__legend-dot--filled { background: var(--color-success); }
.month-calendar__legend-dot--unfilled { background: var(--color-primary); }

@media (max-width: 380px) {
    .month-calendar__legend {
        flex-direction: row;
        padding-top: 10px;
        gap: 16px;
    }
}


.date-input {
    width: 100%;
    font-size: 1rem;
    padding: 11px 12px;
    border-radius: 8px;
    border: 2px solid var(--color-border);
}
.date-input:focus { outline: none; border-color: var(--color-primary); }

.toggle-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    font-size: 0.9rem;
}
.toggle-question + .toggle-question { border-top: 1px solid var(--color-border); }
.toggle-question__buttons { display: flex; gap: 6px; flex-shrink: 0; }
.toggle-btn {
    border: 2px solid var(--color-border);
    background: #fff;
    border-radius: 999px;
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text-muted);
}
.toggle-btn--active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

/* ---------- Numeric fields ---------- */
.field-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 12px;
}
.numeric-field__label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.numeric-field__badge {
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--color-accent-light);
    color: #4A3800;
    padding: 1px 6px;
    border-radius: 999px;
}
.numeric-field__input-wrap { position: relative; }
.numeric-field__input {
    width: 100%;
    font-size: 1rem;
    padding: 10px 40px 10px 12px;
    border-radius: 8px;
    border: 2px solid var(--color-border);
}
.numeric-field__input:focus { outline: none; border-color: var(--color-primary); }
.numeric-field__unit {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.72rem;
    color: var(--color-text-muted);
    pointer-events: none;
}
.numeric-field__error {
    display: block;
    color: var(--color-error);
    font-size: 0.75rem;
    margin-top: 3px;
}

.submit-bar {
    padding: 16px 0 4px;
}

/* ---------- Success ---------- */
.success-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 20px;
    text-align: center;
    margin-top: 40px;
}
.success-card__icon {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--color-success);
    color: #fff;
    font-size: 1.6rem;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 14px;
}
.success-card h2 { margin: 0 0 6px; }
.success-card__actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }

/* ---------- Modal ---------- */
.modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(20, 16, 12, 0.5);
    z-index: 40;
}
.modal-dialog {
    position: fixed;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: 0 12px 32px rgba(0,0,0,0.25);
    width: calc(100% - 32px);
    max-width: 480px;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    z-index: 50;
}
.modal-dialog--wide { max-width: 640px; }
.modal-dialog__header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid var(--color-border);
}
.modal-dialog__header h2 { margin: 0; font-size: 1.1rem; }
.modal-dialog__close { background: none; border: none; font-size: 1.4rem; line-height: 1; cursor: pointer; color: var(--color-text-muted); }
.modal-dialog__body { padding: 16px 18px; overflow-y: auto; }
.modal-dialog__warning {
    background: #FDEAEC;
    color: var(--color-error);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.modal-dialog__subtitle { color: var(--color-text-muted); font-size: 0.88rem; margin-top: 0; }
.modal-dialog__footer {
    display: flex; gap: 10px; justify-content: flex-end;
    padding: 14px 18px;
    border-top: 1px solid var(--color-border);
}
.modal-dialog__footer .btn { flex: 1; }

.summary-section { margin-bottom: 16px; }
.summary-section h3 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-primary-dark);
    margin: 0 0 6px;
}
.summary-list { margin: 0; }
.summary-list__row {
    display: flex; justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px dashed var(--color-border);
    font-size: 0.88rem;
}
.summary-list__row dt { color: var(--color-text-muted); margin: 0; }
.summary-list__row dd { margin: 0; font-weight: 600; }
.summary-list__row--total {
    border-top: 1.5px solid var(--color-text);
    border-bottom: none;
    margin-top: 4px;
    padding-top: 8px;
}
.summary-list__row--total dt, .summary-list__row--total dd {
    font-weight: 700;
    color: var(--color-text);
}

.cylinder-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.cylinder-card { text-align: center; }
.cylinder-card img { width: 100%; max-width: 140px; border-radius: 10px; background: #F1EDE6; }
.cylinder-card h4 { margin: 8px 0 2px; font-size: 0.85rem; }
.cylinder-card p { margin: 0; font-size: 0.72rem; color: var(--color-text-muted); }

@media (min-width: 480px) {
    .cylinder-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 380px) {
    .field-grid { grid-template-columns: 1fr; }
    .dealer-card__grid { grid-template-columns: 1fr 1fr; }
}