:root {
    --primary: #087f5b;
    --primary-dark: #056044;
    --background: #f5f7f6;
    --card: #ffffff;
    --text: #17211c;
    --muted: #6d7772;
    --border: #e2e8e5;
    --danger: #d64545;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background: var(--background);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 50;

    display: flex;
    align-items: center;

    min-height: 68px;
    padding: 12px 18px;

    background: var(--primary);
    color: white;

    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
}

.app-header h1 {
    margin: 0;
    font-size: 21px;
}

.app-header p {
    margin: 3px 0 0;
    font-size: 12px;
    opacity: 0.85;
}

.app-main {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;

    padding: 18px;
    padding-bottom: 100px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}


/* =========================
   WELCOME
========================= */

.welcome-card {
    background: var(--primary);
    color: white;

    border-radius: 18px;
    padding: 22px;

    margin-bottom: 18px;

    box-shadow: var(--shadow);
}

.welcome-card h2 {
    margin: 0 0 6px;
    font-size: 23px;
}

.welcome-card p {
    margin: 0;
    font-size: 14px;
    opacity: 0.9;
}


/* =========================
   STATS
========================= */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;

    margin-bottom: 24px;
}

.stat-card {
    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 14px;

    padding: 15px 10px;

    box-shadow: var(--shadow);

    text-align: center;
}

.stat-label {
    display: block;

    margin-bottom: 7px;

    color: var(--muted);
    font-size: 12px;
}

.stat-card strong {
    display: block;

    font-size: 19px;
    color: var(--primary-dark);
}


/* =========================
   SECTION HEADINGS
========================= */

.section-heading {
    margin: 0 0 12px;
}

.section-heading h3 {
    margin: 0;

    font-size: 18px;
}

.section-heading p {
    margin: 4px 0 0;

    color: var(--muted);
    font-size: 13px;
}


/* =========================
   QUICK ACTIONS
========================= */

.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.quick-action {
    border: 1px solid var(--border);
    border-radius: 16px;

    background: var(--card);

    padding: 17px;

    text-align: left;

    box-shadow: var(--shadow);

    transition: transform 0.12s ease;
}

.quick-action:active {
    transform: scale(0.98);
}

.quick-action span {
    display: block;

    font-size: 25px;
    margin-bottom: 9px;
}

.quick-action strong {
    display: block;
    font-size: 15px;
}

.quick-action small {
    display: block;

    margin-top: 4px;

    color: var(--muted);
    font-size: 12px;
}


/* =========================
   PAGE HEADER
========================= */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 12px;

    margin-bottom: 18px;
}

.page-header h2 {
    margin: 0;

    font-size: 22px;
}

.page-header p {
    margin: 4px 0 0;

    color: var(--muted);
    font-size: 13px;
}


/* =========================
   BUTTONS
========================= */

.primary-button,
.secondary-button {
    border-radius: 11px;

    padding: 11px 15px;

    border: none;

    font-weight: 700;
}

.primary-button {
    background: var(--primary);
    color: white;
}

.primary-button:active {
    background: var(--primary-dark);
}

.secondary-button {
    background: white;
    color: var(--primary-dark);

    border: 1px solid var(--border);
}

.full-width {
    width: 100%;
}

.save-order-button {
    margin-top: 15px;
    min-height: 50px;
    font-size: 16px;
}


/* =========================
   SEARCH
========================= */

.search-box {
    margin-bottom: 14px;
}

.search-box input {
    width: 100%;

    border: 1px solid var(--border);
    border-radius: 12px;

    background: white;

    padding: 13px 14px;

    outline: none;

    font-size: 15px;
}

.search-box input:focus {
    border-color: var(--primary);

    box-shadow: 0 0 0 3px rgba(8, 127, 91, 0.10);
}

.product-search-box {
    margin-bottom: 8px;
}

.product-hint {
    margin: 0 0 12px;

    color: var(--muted);

    font-size: 12px;
}


/* =========================
   FORMS
========================= */

.form-card {
    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 16px;

    padding: 16px;

    margin-bottom: 20px;

    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;

    margin-bottom: 7px;

    font-size: 13px;
    font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;

    border: 1px solid var(--border);
    border-radius: 10px;

    background: white;

    padding: 12px;

    outline: none;

    color: var(--text);
}

.form-group textarea {
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);

    box-shadow: 0 0 0 3px rgba(8, 127, 91, 0.10);
}


/* =========================
   STORE CARDS
========================= */

.store-card {
    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 15px;

    padding: 15px;

    margin-bottom: 12px;

    box-shadow: var(--shadow);
}

.store-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;

    gap: 10px;
}

.store-card h3 {
    margin: 0;

    font-size: 17px;
}

.store-card p {
    margin: 5px 0;

    color: var(--muted);

    font-size: 13px;
}

.store-card-actions {
    display: flex;
    gap: 7px;

    margin-top: 12px;
}

.store-card-actions button {
    flex: 1;

    border: 1px solid var(--border);
    border-radius: 9px;

    background: white;

    padding: 9px;

    font-size: 12px;
    font-weight: 700;
}

.store-card-actions .danger-button {
    color: var(--danger);
}


/* =========================
   PRODUCTS
========================= */

.product-row {
    display: flex;
    align-items: center;

    gap: 10px;

    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 14px;

    padding: 12px;

    margin-bottom: 9px;

    box-shadow: var(--shadow);
}

.product-info {
    flex: 1;
    min-width: 0;
}

.product-info strong {
    display: block;

    font-size: 14px;

    line-height: 1.3;
}

.product-info small {
    display: block;

    margin-top: 3px;

    color: var(--muted);

    font-size: 12px;
}

.product-price {
    margin-top: 5px;

    color: var(--primary-dark);

    font-size: 12px;
    font-weight: 700;
}


/* =========================
   QUANTITY CONTROLS
========================= */

.quantity-control {
    display: flex;
    align-items: center;

    gap: 6px;

    flex-shrink: 0;
}

.quantity-button {
    width: 38px;
    height: 38px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: 1px solid var(--border);
    border-radius: 10px;

    background: #f8faf9;

    color: var(--primary-dark);

    font-size: 21px;
    font-weight: 700;

    padding: 0;
}

.quantity-button:active {
    background: var(--primary);
    color: white;
}

.quantity-input {
    width: 48px;
    height: 38px;

    border: 1px solid var(--border);
    border-radius: 10px;

    text-align: center;

    font-size: 15px;
    font-weight: 700;

    outline: none;
}

.quantity-input:focus {
    border-color: var(--primary);
}


/* =========================
   ORDER SUMMARY
========================= */

.order-summary {
    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 16px;

    padding: 16px;

    margin-top: 15px;

    box-shadow: var(--shadow);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 7px 0;

    font-size: 14px;
}

.summary-total {
    border-top: 1px solid var(--border);

    margin-top: 6px;
    padding-top: 13px;

    font-size: 17px;
}

.summary-total strong {
    color: var(--primary-dark);
}


/* =========================
   ORDERS
========================= */

.order-card {
    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 15px;

    padding: 15px;

    margin-bottom: 12px;

    box-shadow: var(--shadow);

    cursor: pointer;
}

.order-card:active {
    transform: scale(0.99);
}

.order-card-header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.order-card h3 {
    margin: 0;

    font-size: 16px;
}

.order-card p {
    margin: 5px 0 0;

    color: var(--muted);

    font-size: 12px;
}

.order-card-total {
    color: var(--primary-dark);

    font-weight: 700;

    white-space: nowrap;
}


/* =========================
   ORDER DETAILS
========================= */

.order-details-card {
    background: var(--card);

    border: 1px solid var(--border);
    border-radius: 16px;

    padding: 16px;

    box-shadow: var(--shadow);
}

.order-detail-row {
    display: flex;
    justify-content: space-between;

    gap: 15px;

    padding: 10px 0;

    border-bottom: 1px solid var(--border);
}

.order-detail-row:last-child {
    border-bottom: none;
}

.order-detail-row span {
    color: var(--muted);
}

.order-detail-row strong {
    text-align: right;
}


/* =========================
   EMPTY STATES
========================= */

.empty-state {
    background: white;

    border: 1px dashed var(--border);
    border-radius: 15px;

    padding: 30px 18px;

    text-align: center;

    color: var(--muted);
}

.empty-state strong {
    display: block;

    margin-bottom: 5px;

    color: var(--text);
}


/* =========================
   BOTTOM NAV
========================= */

.bottom-nav {
    position: fixed;

    left: 0;
    right: 0;
    bottom: 0;

    z-index: 100;

    display: grid;
    grid-template-columns: repeat(5, 1fr);

    height: 68px;

    background: white;

    border-top: 1px solid var(--border);

    box-shadow: 0 -3px 14px rgba(0, 0, 0, 0.07);
}

.nav-item {
    border: none;

    background: transparent;

    color: var(--muted);

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    gap: 3px;

    padding: 5px 2px;
}

.nav-item span {
    font-size: 19px;
    line-height: 1;
}

.nav-item small {
    font-size: 10px;
}

.nav-item.active {
    color: var(--primary);
    font-weight: 700;
}


/* =========================
   DESKTOP
========================= */

@media (min-width: 700px) {

    .app-main {
        padding: 28px;
        padding-bottom: 110px;
    }

    .quick-actions {
        grid-template-columns: repeat(4, 1fr);
    }

    .product-row {
        padding: 14px 16px;
    }

    .bottom-nav {
        left: 50%;
        right: auto;

        width: min(700px, 100%);

        transform: translateX(-50%);

        border-radius: 18px 18px 0 0;
    }
}


/* =========================
   SMALL PHONES
========================= */

@media (max-width: 380px) {

    .app-main {
        padding: 14px;
        padding-bottom: 95px;
    }

    .stats-grid {
        gap: 7px;
    }

    .stat-card {
        padding: 12px 6px;
    }

    .stat-card strong {
        font-size: 16px;
    }

    .product-row {
        padding: 10px;
        gap: 7px;
    }

    .product-info strong {
        font-size: 13px;
    }

    .quantity-button {
        width: 34px;
        height: 34px;
    }

    .quantity-input {
        width: 40px;
        height: 34px;
    }

    .page-header {
        align-items: flex-start;
    }

    .page-header .primary-button {
        padding: 9px 11px;
        font-size: 12px;
    }
}

/* =========================
   ADDITIONS (v2)
========================= */

/* classes used by app.js that had no styles */
.store-top,
.order-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
}

.store-name,
.order-store-name {
    font-size: 16px;
    font-weight: 700;
}

.store-area,
.order-date-text {
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
}

.store-info {
    margin-top: 10px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
}

.product-row > div:first-child {
    flex: 1;
    min-width: 0;
}

.product-name {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.3;
}

.product-meta {
    margin-top: 3px;
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 700;
}

.product-quantity {
    width: 48px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: 10px;
    text-align: center;
    font-size: 15px;
    font-weight: 700;
    outline: none;
}

.product-quantity:focus {
    border-color: var(--primary);
}

.detail-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    box-shadow: var(--shadow);
}

.detail-header {
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.detail-header h3 {
    margin: 0;
}

.detail-header p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.detail-product {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.detail-card .order-summary {
    box-shadow: none;
}

.detail-card .order-summary > div {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
}

/* product manager */
.form-title {
    margin: 0 0 14px;
    font-size: 17px;
}

.cancel-edit {
    margin-top: 10px;
}

.form-status {
    min-height: 18px;
    margin-top: 10px;
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}

.product-manage-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px;
    margin-bottom: 9px;
    box-shadow: var(--shadow);
}

.product-manage-info {
    flex: 1;
    min-width: 0;
}

.product-manage-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.product-manage-actions .secondary-button {
    padding: 9px 11px;
    font-size: 13px;
}

.danger-text {
    color: var(--danger);
}

.reset-products {
    margin-top: 14px;
    color: var(--muted);
}

/* backup */
.backup-reminder {
    display: block;
    width: 100%;
    margin: 0 0 18px;
    padding: 12px 14px;
    border: 1px solid #f0c36d;
    border-radius: 12px;
    background: #fff7e0;
    color: #7a5200;
    font-size: 13px;
    font-weight: 700;
    text-align: left;
}

.backup-reminder[hidden],
[hidden] {
    display: none !important;
}

.backup-actions {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.file-button {
    display: block;
    text-align: center;
    cursor: pointer;
}

.backup-note {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
}


/* v3: order actions, dues, printing */
.order-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 16px;
}

.dues-heading {
    margin-top: 22px;
}

#printArea {
    display: none;
}

@media print {
    body > *:not(#printArea) {
        display: none !important;
    }

    #printArea {
        display: block !important;
        padding: 16px;
        color: #000;
        background: #fff;
    }

    #printArea table {
        width: 100%;
        border-collapse: collapse;
    }

    #printArea th,
    #printArea td {
        padding: 6px;
        border-bottom: 1px solid #ccc;
        text-align: left;
    }
}


/* order list buttons */
.order-card-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.order-card-actions button {
    flex: 1;
    padding: 9px;
    font-size: 13px;
}