/* ==========================================================================
   One Step Order Form for WHMCS — v1.0.0
   Modern, responsive single-page order form styling.
   Theme is driven by CSS custom properties injected by the addon module:
     --osof-accent, --osof-accent-rgb, --osof-secondary
   ========================================================================== */

:root {
    --osof-accent: #4f46e5;
    --osof-accent-rgb: 79, 70, 229;
    --osof-secondary: #0ea5e9;
    --osof-bg: #f6f7fb;
    --osof-card: #ffffff;
    --osof-border: #e6e8ef;
    --osof-text: #1f2430;
    --osof-muted: #6b7280;
    --osof-radius: 14px;
    --osof-radius-sm: 9px;
    --osof-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .06);
    --osof-shadow-hover: 0 8px 30px rgba(var(--osof-accent-rgb), .18);
    --osof-ok: #16a34a;
    --osof-warn: #d97706;
    --osof-bad: #dc2626;
}

/* ---- Layout shell -------------------------------------------------------- */
.osof { color: var(--osof-text); font-size: 15px; line-height: 1.5; }
.osof * { box-sizing: border-box; }
.osof-shell {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 340px;
    gap: 24px;
    align-items: start;
    max-width: 1280px;
    margin: 0 auto;
    padding: 8px 0 48px;
}
.osof-shell:not(:has(.osof-categories)) { grid-template-columns: minmax(0, 1fr) 340px; }
.osof-content { min-width: 0; }
.osof-content-wide { grid-column: 1 / -1; max-width: 880px; margin: 0 auto; }

@media (max-width: 991px) {
    .osof-shell { grid-template-columns: 1fr; }
    .osof-categories { order: -1; }
    .osof-summary-sticky .osof-summary-card { position: static !important; }
}

/* ---- Typography & heads -------------------------------------------------- */
.osof-h1 { font-size: 28px; font-weight: 700; margin: 0 0 6px; letter-spacing: -.01em; }
.osof-h2 { font-size: 19px; font-weight: 700; margin: 0; }
.osof-lead { color: var(--osof-muted); margin: 0; }
.osof-muted { color: var(--osof-muted); font-size: 13px; }
.osof-pagehead { margin-bottom: 22px; }
.osof-section-title { font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--osof-muted); margin: 0 0 14px; }
.osof-section { background: var(--osof-card); border: 1px solid var(--osof-border); border-radius: var(--osof-radius); padding: 22px; margin-bottom: 18px; box-shadow: var(--osof-shadow); }
.osof-hidden { display: none !important; }

/* ---- Product cards ------------------------------------------------------- */
.osof-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.osof-layout-rows { grid-template-columns: 1fr; }
.osof-card {
    background: var(--osof-card); border: 1px solid var(--osof-border);
    border-radius: var(--osof-radius); padding: 22px; display: flex; flex-direction: column;
    box-shadow: var(--osof-shadow); transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.osof-card:hover { transform: translateY(-3px); box-shadow: var(--osof-shadow-hover); border-color: rgba(var(--osof-accent-rgb), .4); }
.osof-card-soldout { opacity: .6; }
.osof-card-head { margin-bottom: 12px; }
.osof-card-name { font-size: 18px; font-weight: 700; margin: 0; }
.osof-stock { font-size: 12px; color: var(--osof-muted); }
.osof-card-price { margin: 6px 0 14px; }
.osof-price-label { display: block; font-size: 12px; color: var(--osof-muted); }
.osof-amount { font-size: 30px; font-weight: 800; color: var(--osof-accent); letter-spacing: -.02em; }
.osof-cycle { font-size: 13px; color: var(--osof-muted); margin-left: 4px; }
.osof-setup { display: block; font-size: 12px; color: var(--osof-muted); margin-top: 2px; }
.osof-card-desc { font-size: 14px; color: var(--osof-muted); margin: 0 0 12px; }
.osof-card-features { list-style: none; padding: 0; margin: 0 0 18px; flex: 1; }
.osof-card-features li { padding: 6px 0 6px 24px; position: relative; font-size: 14px; border-bottom: 1px dashed var(--osof-border); }
.osof-card-features li::before { content: "\f00c"; font-family: "Font Awesome 5 Free"; font-weight: 900; position: absolute; left: 0; color: var(--osof-ok); font-size: 12px; }
.osof-feature-value { font-weight: 700; }
.osof-card-foot { margin-top: auto; }

/* ---- Buttons ------------------------------------------------------------- */
.osof-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font-size: 14px; font-weight: 600; line-height: 1; cursor: pointer;
    padding: 11px 18px; border-radius: var(--osof-radius-sm); border: 1px solid transparent;
    text-decoration: none; transition: filter .15s ease, background .15s ease, box-shadow .15s ease;
}
.osof-btn-primary { background: var(--osof-accent); color: #fff; box-shadow: 0 6px 16px rgba(var(--osof-accent-rgb), .28); }
.osof-btn-primary:hover { filter: brightness(1.07); color: #fff; }
.osof-btn-ghost { background: #fff; color: var(--osof-text); border-color: var(--osof-border); }
.osof-btn-ghost:hover { border-color: rgba(var(--osof-accent-rgb), .5); color: var(--osof-accent); }
.osof-btn-muted { background: #eef0f5; color: var(--osof-muted); cursor: not-allowed; }
.osof-btn-link { background: none; border: none; color: var(--osof-muted); padding: 6px 0; }
.osof-btn-link:hover { color: var(--osof-bad); }
.osof-btn-block { display: flex; width: 100%; }
.osof-btn-lg { padding: 14px 26px; font-size: 16px; }
.osof-btn-xs { padding: 6px 10px; font-size: 12px; }
.osof-btn-disabled, .osof-btn[disabled] { opacity: .55; pointer-events: none; }
.osof-btn.osof-is-busy { opacity: .7; pointer-events: none; }
.osof-actions { text-align: center; margin-top: 24px; }

/* ---- Forms --------------------------------------------------------------- */
.osof-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.osof-fields { display: grid; gap: 16px; }
.osof-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.osof-field-full { grid-column: 1 / -1; }
.osof-field label { font-size: 13px; font-weight: 600; color: var(--osof-text); }
.osof-field-help { font-size: 12px; color: var(--osof-muted); }
.osof-input, .osof input.form-control, .osof select.form-control, .osof textarea {
    width: 100%; padding: 11px 13px; font-size: 14px; color: var(--osof-text);
    background: #fff; border: 1px solid var(--osof-border); border-radius: var(--osof-radius-sm);
    transition: border-color .15s ease, box-shadow .15s ease; font-family: inherit;
}
.osof-input:focus, .osof .form-control:focus {
    outline: none; border-color: var(--osof-accent);
    box-shadow: 0 0 0 3px rgba(var(--osof-accent-rgb), .15);
}
.osof-input-qty { width: 90px; }
.osof-static { padding: 8px 0; font-weight: 600; }
@media (max-width: 575px) { .osof-grid2 { grid-template-columns: 1fr; } }

/* ---- Billing cycles ------------------------------------------------------ */
.osof-cycles { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.osof-cycle-opt {
    display: flex; flex-direction: column; gap: 4px; padding: 14px; cursor: pointer;
    border: 2px solid var(--osof-border); border-radius: var(--osof-radius-sm); position: relative;
}
.osof-cycle-opt input { position: absolute; opacity: 0; }
.osof-cycle-opt-active { border-color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .04); }
.osof-cycle-name { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--osof-muted); }
.osof-cycle-price { font-weight: 700; }

/* ---- Configurable options / radios / checkboxes -------------------------- */
.osof-radio-group { display: flex; flex-wrap: wrap; gap: 14px; }
.osof-radio, .osof-checkbox { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.osof-qty { display: flex; align-items: center; gap: 10px; }
.osof-qty-label { font-size: 13px; color: var(--osof-muted); }

/* ---- Addons -------------------------------------------------------------- */
.osof-addons { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.osof-addon {
    display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center;
    padding: 14px 16px; border: 2px solid var(--osof-border); border-radius: var(--osof-radius-sm); cursor: pointer;
}
.osof-addon-on { border-color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .04); }
.osof-addon-name { font-weight: 600; display: block; }
.osof-addon-desc { font-size: 12px; color: var(--osof-muted); }
.osof-addon-price { font-weight: 700; white-space: nowrap; }
@media (max-width: 575px) { .osof-addons { grid-template-columns: 1fr; } }

/* ---- Order summary sidebar ----------------------------------------------- */
.osof-summary-card {
    background: var(--osof-card); border: 1px solid var(--osof-border);
    border-radius: var(--osof-radius); padding: 22px; box-shadow: var(--osof-shadow);
}
.osof-summary-sticky .osof-summary-card { position: sticky; top: 20px; }
.osof-summary-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--osof-border); }
.osof-summary-loader { color: var(--osof-accent); opacity: 0; transition: opacity .2s; }
.osof-summary-loader.osof-is-loading { opacity: 1; }
.osof-sum-row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; font-size: 14px; }
.osof-sum-sub { color: var(--osof-muted); font-size: 13px; }
.osof-sum-product { margin-bottom: 8px; }
.osof-sum-name { display: block; font-weight: 700; }
.osof-sum-group { display: block; font-size: 12px; color: var(--osof-muted); }
.osof-sum-totals { border-top: 1px solid var(--osof-border); margin-top: 8px; padding-top: 8px; }
.osof-sum-recurring { border-top: 1px solid var(--osof-border); margin-top: 8px; padding-top: 10px; font-size: 13px; color: var(--osof-muted); display: grid; gap: 2px; }
.osof-sum-recurring-label { font-weight: 600; color: var(--osof-text); }
.osof-sum-due { margin-top: 14px; padding-top: 14px; border-top: 2px solid var(--osof-border); text-align: right; }
.osof-sum-due-amt { display: block; font-size: 28px; font-weight: 800; color: var(--osof-accent); }
.osof-sum-due-label { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--osof-muted); }
.osof-sum-empty { color: var(--osof-muted); text-align: center; padding: 20px 0; }
.osof-summary-foot { margin-top: 16px; display: grid; gap: 10px; }
.osof-summary-viewcart { text-align: center; font-size: 13px; color: var(--osof-muted); text-decoration: none; }
.osof-summary-viewcart:hover { color: var(--osof-accent); }
.osof-express { margin: 12px 0; }
.osof-or { text-align: center; color: var(--osof-muted); font-size: 12px; margin: 8px 0; }

/* ---- Categories nav ------------------------------------------------------ */
.osof-catpanel { background: var(--osof-card); border: 1px solid var(--osof-border); border-radius: var(--osof-radius); margin-bottom: 16px; overflow: hidden; box-shadow: var(--osof-shadow); }
.osof-catpanel-head { padding: 14px 16px; font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--osof-muted); border-bottom: 1px solid var(--osof-border); }
.osof-catlist { display: flex; flex-direction: column; }
.osof-catlink { padding: 11px 16px; font-size: 14px; color: var(--osof-text); text-decoration: none; border-left: 3px solid transparent; }
.osof-catlink:hover { background: var(--osof-bg); color: var(--osof-accent); }
.osof-catlink-active { border-left-color: var(--osof-accent); color: var(--osof-accent); font-weight: 600; background: rgba(var(--osof-accent-rgb), .05); }
.osof-catlink-disabled { opacity: .5; pointer-events: none; }
.osof-badge-count { float: right; background: var(--osof-accent); color: #fff; border-radius: 999px; padding: 1px 8px; font-size: 11px; }

/* ---- Cart items (viewcart) ----------------------------------------------- */
.osof-cart-list { background: var(--osof-card); border: 1px solid var(--osof-border); border-radius: var(--osof-radius); box-shadow: var(--osof-shadow); overflow: hidden; }
.osof-cart-item { display: grid; grid-template-columns: 1fr auto auto; gap: 14px; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--osof-border); }
.osof-cart-subitem { background: var(--osof-bg); padding-left: 36px; }
.osof-cart-item:last-child { border-bottom: none; }
.osof-cart-name { font-weight: 700; display: block; }
.osof-cart-edit { font-size: 12px; font-weight: 500; color: var(--osof-accent); text-decoration: none; margin-left: 8px; }
.osof-cart-group { font-size: 12px; color: var(--osof-muted); }
.osof-cart-domain { display: block; font-size: 13px; color: var(--osof-secondary); }
.osof-cart-config { display: block; color: var(--osof-muted); margin-top: 4px; }
.osof-cart-price { text-align: right; }
.osof-cart-amt { display: block; font-weight: 700; }
.osof-cart-cycle { font-size: 12px; color: var(--osof-muted); }
.osof-cart-setup { display: block; font-size: 11px; color: var(--osof-muted); }
.osof-cart-remove { background: none; border: none; color: var(--osof-muted); cursor: pointer; font-size: 16px; padding: 6px; }
.osof-cart-remove:hover { color: var(--osof-bad); }
.osof-cart-empty { padding: 40px; text-align: center; color: var(--osof-muted); }
.osof-cart-qty { display: flex; gap: 6px; align-items: center; }
.osof-promo-block { margin-top: 18px; }
.osof-promo-row { display: flex; gap: 10px; }
.osof-promo-row .osof-input { flex: 1; }
.osof-promo-applied { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: rgba(22,163,74,.08); border-radius: var(--osof-radius-sm); }

/* ---- Checkout ------------------------------------------------------------ */
.osof-checkout-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.osof-accounts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.osof-account { display: block; padding: 14px; border: 2px solid var(--osof-border); border-radius: var(--osof-radius-sm); cursor: pointer; }
.osof-account-active { border-color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .04); }
.osof-account-name { display: block; font-weight: 700; }
.osof-account-addr { display: block; font-size: 12px; color: var(--osof-muted); }
.osof-gateways { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.osof-gateway { display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border: 2px solid var(--osof-border); border-radius: var(--osof-radius-sm); cursor: pointer; }
.osof-gateway-active { border-color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .04); }
.osof-tos { margin: 18px 0; justify-content: center; }
.osof-checkout-foot { text-align: center; margin-top: 8px; }
.osof-ssl { margin-top: 18px; text-align: center; }
.password-strength-meter .progress { height: 6px; background: var(--osof-border); border-radius: 999px; overflow: hidden; }
.password-strength-meter .progress-bar { height: 100%; background: var(--osof-ok); width: 0; transition: width .3s; }

/* ---- Domain selection ---------------------------------------------------- */
.osof-domain-options { display: grid; gap: 14px; }
.osof-domain-opt { display: block; padding: 18px; border: 2px solid var(--osof-border); border-radius: var(--osof-radius); cursor: pointer; }
.osof-domain-opt:has(input:checked) { border-color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .03); }
.osof-domain-opt-label { font-weight: 600; margin-left: 8px; }
.osof-domain-opt-body { display: flex; gap: 8px; align-items: center; margin-top: 14px; flex-wrap: wrap; }
.osof-www { color: var(--osof-muted); font-size: 13px; }
.osof-input-tld { width: auto; min-width: 110px; }
.osof-domain-result { background: var(--osof-card); border: 1px solid var(--osof-border); border-radius: var(--osof-radius); padding: 22px; margin-top: 18px; box-shadow: var(--osof-shadow); }
.osof-domain-status { font-size: 17px; font-weight: 700; padding: 8px 0; }
.osof-domain-status-ok { color: var(--osof-ok); }
.osof-domain-status-bad { color: var(--osof-bad); }
.osof-domain-price { font-weight: 700; color: var(--osof-accent); }
.osof-domain-addons { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-top: 16px; }
.osof-domain-addon { display: grid; grid-template-columns: auto 1fr; gap: 10px; padding: 14px; border: 2px solid var(--osof-border); border-radius: var(--osof-radius-sm); cursor: pointer; }
.osof-domain-addon-on { border-color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .04); }
.osof-domain-addon-info strong { display: block; }
.osof-domain-addon-info small { color: var(--osof-muted); font-size: 12px; }
.osof-domain-addon-price { grid-column: 1 / -1; font-weight: 700; text-align: right; }

/* ---- Alerts -------------------------------------------------------------- */
.osof-alert { padding: 14px 18px; border-radius: var(--osof-radius-sm); margin-bottom: 18px; font-size: 14px; }
.osof-alert-info { background: rgba(14,165,233,.1); color: #075985; }
.osof-alert-success { background: rgba(22,163,74,.1); color: #166534; }
.osof-alert-warning { background: rgba(217,119,6,.1); color: #92400e; }
.osof-alert-danger { background: rgba(220,38,38,.08); color: #991b1b; }
.osof-ok { color: var(--osof-ok); }
.osof-warn { color: var(--osof-warn); }

/* ---- Complete page ------------------------------------------------------- */
.osof-complete { text-align: center; max-width: 560px; margin: 20px auto; }
.osof-complete-icon { font-size: 64px; color: var(--osof-ok); margin-bottom: 12px; }
.osof-payment-output { margin: 20px 0; }

/* ---- Display Manager visuals --------------------------------------------- */
.osof-card { position: relative; overflow: hidden; }
.osof-card-featured { border-color: var(--osof-card-accent, var(--osof-accent)); box-shadow: 0 8px 30px rgba(var(--osof-accent-rgb), .14); }
.osof-card-badge {
    position: absolute; top: 14px; right: -34px; transform: rotate(45deg);
    background: var(--osof-card-accent, var(--osof-accent)); color: #fff;
    font-size: 11px; font-weight: 700; padding: 4px 40px; letter-spacing: .03em;
}
.osof-card-stripe { position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.osof-card-media { text-align: center; margin: 4px 0 12px; }
.osof-card-media img { max-height: 64px; max-width: 100%; object-fit: contain; }
.osof-gateway-icon { height: 22px; width: auto; }
.osof-gateway[style*="--osof-gw"] { border-color: var(--osof-gw); }
.osof-addon-icon { height: 32px; width: 32px; object-fit: contain; flex: 0 0 auto; }
.osof-addon { display: flex; align-items: center; }
.osof-addon .osof-addon-info { flex: 1 1 auto; min-width: 0; }
.osof-addon-on { border-color: var(--osof-addon-accent, var(--osof-accent)); }
.osof-addon-badge { font-size: 11px; font-weight: 700; color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .12); padding: 1px 7px; border-radius: 999px; }
.osof-cycle-save { display: inline-block; margin-top: 4px; font-size: 11px; font-weight: 700; color: #fff; background: var(--osof-ok); padding: 1px 7px; border-radius: 999px; }
.osof-req { color: var(--osof-bad); }

/* ---- Slider layout ------------------------------------------------------- */
.osof-slider-wrap { position: relative; }
.osof-grid.osof-slider {
    display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch; padding-bottom: 10px; scrollbar-width: thin;
}
.osof-grid.osof-slider .osof-card { scroll-snap-align: start; flex: 0 0 calc((100% - 36px) / 3); min-width: 240px; }
@media (max-width: 991px) { .osof-grid.osof-slider .osof-card { flex-basis: calc((100% - 18px) / 2); } }
@media (max-width: 575px) { .osof-grid.osof-slider .osof-card { flex-basis: 85%; } }
.osof-slider-nav {
    position: absolute; top: 40%; z-index: 2; width: 40px; height: 40px; border-radius: 50%;
    border: 1px solid var(--osof-border); background: #fff; color: var(--osof-text); cursor: pointer;
    box-shadow: var(--osof-shadow); display: flex; align-items: center; justify-content: center;
}
.osof-slider-nav:hover { color: var(--osof-accent); border-color: var(--osof-accent); }
.osof-slider-prev { left: -18px; }
.osof-slider-next { right: -18px; }

/* ---- Domain live result -------------------------------------------------- */
#osofDomainAdd { margin-top: 14px; }
.osof-spotlight-tlds { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 14px; }
.osof-tld-chip { border: 1px solid var(--osof-border); background: #fff; border-radius: 999px; padding: 5px 14px; font-size: 13px; font-weight: 600; cursor: pointer; }
.osof-tld-chip:hover, .osof-tld-chip-active { border-color: var(--osof-accent); color: var(--osof-accent); background: rgba(var(--osof-accent-rgb), .06); }

/* ---- Modal --------------------------------------------------------------- */
.osof-modal { position: fixed; inset: 0; z-index: 1050; display: none; }
.osof-modal-open { display: block; }
.osof-modal[aria-hidden="false"] { display: block; }
.osof-modal-backdrop { position: absolute; inset: 0; background: rgba(16,24,40,.55); }
.osof-modal-dialog { position: relative; max-width: 640px; margin: 8vh auto; background: #fff; border-radius: var(--osof-radius); box-shadow: 0 20px 60px rgba(0,0,0,.3); overflow: hidden; }
.osof-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--osof-border); }
.osof-modal-head h3 { margin: 0; font-size: 18px; }
.osof-modal-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--osof-muted); line-height: 1; }
.osof-modal-body { padding: 22px; max-height: 60vh; overflow-y: auto; }
.osof-modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 16px 22px; border-top: 1px solid var(--osof-border); }