/* =========================================================
   NEXORA — CHECKOUT PAGE
   Premium Checkout Styles
   ========================================================= */

/* ---------- ROOT VARIABLES ---------- */

:root {
    --checkout-bg: #f5f5f7;
    --checkout-white: #ffffff;
    --checkout-black: #111111;
    --checkout-dark: #171717;
    --checkout-gray: #6b6b6b;
    --checkout-light-gray: #ededed;
    --checkout-border: #e4e4e7;
    --checkout-red: #ff2938;
    --checkout-red-dark: #e51e2d;
    --checkout-green: #159447;
    --checkout-shadow: 0 18px 50px rgba(0, 0, 0, 0.07);
    --checkout-radius: 22px;
    --checkout-transition: 0.3s ease;
}


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

.checkout-page {
    background:
        radial-gradient(
            circle at 85% 8%,
            rgba(255, 41, 56, 0.06),
            transparent 25%
        ),
        var(--checkout-bg);
    min-height: 100vh;
}


/* =========================================================
   CHECKOUT HERO / HEADER
   ========================================================= */

.checkout-hero {
    position: relative;
    padding: 150px 0 70px;
    overflow: hidden;
}

.checkout-hero::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    right: -180px;
    top: -180px;
    background: radial-gradient(
        circle,
        rgba(255, 41, 56, 0.12),
        transparent 68%
    );
    pointer-events: none;
}

.checkout-hero-content {
    position: relative;
    z-index: 2;
}

.checkout-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 18px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--checkout-red);
}

.checkout-eyebrow::before {
    content: "";
    width: 26px;
    height: 2px;
    background: var(--checkout-red);
    border-radius: 10px;
}

.checkout-hero h1 {
    margin: 0;
    max-width: 700px;
    color: var(--checkout-black);
    font-size: clamp(42px, 6vw, 76px);
    line-height: 0.98;
    font-weight: 800;
    letter-spacing: -0.055em;
}

.checkout-hero h1 span {
    color: var(--checkout-red);
}

.checkout-hero p {
    max-width: 600px;
    margin: 24px 0 0;
    color: var(--checkout-gray);
    font-size: 17px;
    line-height: 1.75;
}


/* =========================================================
   CHECKOUT MAIN CONTAINER
   ========================================================= */

.checkout-section {
    position: relative;
    padding: 0 0 110px;
}

.checkout-container {
    width: min(1240px, calc(100% - 40px));
    margin: 0 auto;
}

.checkout-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(340px, 0.85fr);
    gap: 30px;
    align-items: start;
}


/* =========================================================
   CHECKOUT CARDS
   ========================================================= */

.checkout-card {
    position: relative;
    background: var(--checkout-white);
    border: 1px solid rgba(0, 0, 0, 0.045);
    border-radius: var(--checkout-radius);
    box-shadow: var(--checkout-shadow);
}

.checkout-form-card {
    padding: 38px;
}

.checkout-summary-card {
    padding: 32px;
}


/* =========================================================
   CARD HEADINGS
   ========================================================= */

.checkout-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 32px;
}

.checkout-card-heading {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.checkout-heading-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: #fff0f1;
    color: var(--checkout-red);
    font-size: 18px;
}

.checkout-card h2 {
    margin: 0;
    color: var(--checkout-black);
    font-size: 22px;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.checkout-card-header p {
    margin: 7px 0 0;
    color: var(--checkout-gray);
    font-size: 14px;
    line-height: 1.5;
}


/* =========================================================
   FORM
   ========================================================= */

.checkout-form {
    width: 100%;
}

.checkout-form-section {
    margin-bottom: 36px;
}

.checkout-form-section:last-of-type {
    margin-bottom: 25px;
}

.checkout-form-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    color: var(--checkout-dark);
    font-size: 15px;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.checkout-form-section-title::before {
    content: "";
    width: 5px;
    height: 18px;
    border-radius: 5px;
    background: var(--checkout-red);
}

.checkout-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.checkout-form-group {
    position: relative;
    margin-bottom: 20px;
}

.checkout-form-group.full-width {
    grid-column: 1 / -1;
}

.checkout-form-group label {
    display: block;
    margin-bottom: 9px;
    color: var(--checkout-dark);
    font-size: 13px;
    font-weight: 700;
}

.checkout-form-group label span {
    color: var(--checkout-red);
}

.checkout-form-group input,
.checkout-form-group select,
.checkout-form-group textarea {
    width: 100%;
    border: 1px solid var(--checkout-border);
    border-radius: 13px;
    outline: none;
    background: #fafafa;
    color: var(--checkout-black);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    transition:
        border-color var(--checkout-transition),
        box-shadow var(--checkout-transition),
        background var(--checkout-transition),
        transform var(--checkout-transition);
}

.checkout-form-group input,
.checkout-form-group select {
    height: 53px;
    padding: 0 16px;
}

.checkout-form-group textarea {
    min-height: 120px;
    padding: 15px 16px;
    resize: vertical;
    line-height: 1.6;
}

.checkout-form-group input::placeholder,
.checkout-form-group textarea::placeholder {
    color: #a1a1aa;
}

.checkout-form-group select {
    cursor: pointer;
    appearance: none;
    background-image:
        linear-gradient(45deg, transparent 50%, #777 50%),
        linear-gradient(135deg, #777 50%, transparent 50%);
    background-position:
        calc(100% - 20px) 22px,
        calc(100% - 15px) 22px;
    background-size: 5px 5px;
    background-repeat: no-repeat;
}

.checkout-form-group input:hover,
.checkout-form-group select:hover,
.checkout-form-group textarea:hover {
    border-color: #d0d0d4;
    background: #fff;
}

.checkout-form-group input:focus,
.checkout-form-group select:focus,
.checkout-form-group textarea:focus {
    border-color: var(--checkout-red);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(255, 41, 56, 0.09);
}

.checkout-form-group.error input,
.checkout-form-group.error select,
.checkout-form-group.error textarea {
    border-color: var(--checkout-red);
    box-shadow: 0 0 0 3px rgba(255, 41, 56, 0.07);
}

.checkout-error {
    display: none;
    margin-top: 7px;
    color: var(--checkout-red);
    font-size: 12px;
    font-weight: 600;
}

.checkout-form-group.error .checkout-error {
    display: block;
}


/* =========================================================
   PAYMENT OPTIONS
   ========================================================= */

.payment-options {
    display: grid;
    gap: 13px;
}

.payment-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px;
    border: 1px solid var(--checkout-border);
    border-radius: 15px;
    background: #fafafa;
    cursor: pointer;
    transition:
        border-color var(--checkout-transition),
        background var(--checkout-transition),
        box-shadow var(--checkout-transition),
        transform var(--checkout-transition);
}

.payment-option:hover {
    border-color: #cfcfd4;
    background: #fff;
    transform: translateY(-1px);
}

.payment-option:has(input:checked) {
    border-color: var(--checkout-red);
    background: #fff7f7;
    box-shadow: 0 8px 24px rgba(255, 41, 56, 0.08);
}

.payment-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.payment-radio {
    position: relative;
    flex: 0 0 21px;
    width: 21px;
    height: 21px;
    border: 2px solid #c7c7cc;
    border-radius: 50%;
    transition: var(--checkout-transition);
}

.payment-option input:checked + .payment-radio {
    border-color: var(--checkout-red);
}

.payment-option input:checked + .payment-radio::after {
    content: "";
    position: absolute;
    width: 9px;
    height: 9px;
    left: 4px;
    top: 4px;
    border-radius: 50%;
    background: var(--checkout-red);
}

.payment-option-content {
    flex: 1;
}

.payment-option-title {
    display: block;
    margin-bottom: 4px;
    color: var(--checkout-black);
    font-size: 14px;
    font-weight: 800;
}

.payment-option-description {
    display: block;
    color: var(--checkout-gray);
    font-size: 12px;
    line-height: 1.5;
}

.payment-option-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: #eeeeef;
    color: var(--checkout-dark);
    font-size: 16px;
}


/* =========================================================
   TERMS & CONDITIONS
   ========================================================= */

.checkout-terms {
    display: flex;
    align-items: flex-start;
    gap: 11px;
    margin: 25px 0;
    color: var(--checkout-gray);
    font-size: 12px;
    line-height: 1.65;
}

.checkout-terms input {
    flex: 0 0 17px;
    width: 17px;
    height: 17px;
    margin-top: 2px;
    accent-color: var(--checkout-red);
    cursor: pointer;
}

.checkout-terms label {
    cursor: pointer;
}

.checkout-terms a {
    color: var(--checkout-black);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 2px;
}


/* =========================================================
   PLACE ORDER BUTTON
   ========================================================= */

.place-order-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    min-height: 58px;
    padding: 0 25px;
    border: none;
    border-radius: 15px;
    outline: none;
    background: var(--checkout-red);
    color: #fff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.01em;
    cursor: pointer;
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(255, 41, 56, 0.22);
    transition:
        background var(--checkout-transition),
        transform var(--checkout-transition),
        box-shadow var(--checkout-transition);
}

.place-order-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 70%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.18),
        transparent
    );
    transform: skewX(-20deg);
    transition: left 0.65s ease;
}

.place-order-btn:hover::before {
    left: 140%;
}

.place-order-btn:hover {
    background: var(--checkout-red-dark);
    transform: translateY(-3px);
    box-shadow: 0 17px 35px rgba(255, 41, 56, 0.27);
}

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

.place-order-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.place-order-btn i {
    transition: transform 0.3s ease;
}

.place-order-btn:hover i {
    transform: translateX(4px);
}


/* =========================================================
   LOADING STATE
   ========================================================= */

.place-order-btn.loading {
    pointer-events: none;
}

.place-order-btn.loading .btn-text {
    opacity: 0;
}

.place-order-btn .btn-loader {
    position: absolute;
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: checkoutSpin 0.75s linear infinite;
}

.place-order-btn.loading .btn-loader {
    display: block;
}

@keyframes checkoutSpin {
    to {
        transform: rotate(360deg);
    }
}


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

.checkout-summary-card {
    position: sticky;
    top: 110px;
}

.summary-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 26px;
}

.summary-heading h2 {
    font-size: 21px;
}

.summary-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 8px;
    border-radius: 50px;
    background: #f1f1f3;
    color: var(--checkout-dark);
    font-size: 11px;
    font-weight: 800;
}


/* =========================================================
   SUMMARY ITEMS
   ========================================================= */

.checkout-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding-bottom: 23px;
    border-bottom: 1px solid var(--checkout-border);
}

.checkout-item {
    display: flex;
    align-items: center;
    gap: 13px;
    animation: checkoutItemIn 0.45s ease both;
}

@keyframes checkoutItemIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.checkout-item-image {
    position: relative;
    flex: 0 0 66px;
    width: 66px;
    height: 66px;
    border-radius: 13px;
    overflow: hidden;
    background: #f3f3f4;
}

.checkout-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

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

.checkout-item-name {
    margin: 0 0 4px;
    color: var(--checkout-black);
    font-size: 13px;
    font-weight: 800;
    line-height: 1.35;
}

.checkout-item-meta {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--checkout-gray);
    font-size: 11px;
}

.checkout-item-quantity {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 6px;
    background: #f0f0f2;
    color: var(--checkout-dark);
    font-weight: 700;
}

.checkout-item-price {
    flex-shrink: 0;
    color: var(--checkout-black);
    font-size: 13px;
    font-weight: 800;
}


/* =========================================================
   SUMMARY TOTALS
   ========================================================= */

.summary-totals {
    padding: 23px 0 0;
}

.summary-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 15px;
    color: var(--checkout-gray);
    font-size: 13px;
}

.summary-row strong {
    color: var(--checkout-dark);
    font-weight: 800;
}

.summary-row.shipping strong {
    color: var(--checkout-green);
}

.summary-divider {
    height: 1px;
    margin: 19px 0;
    background: var(--checkout-border);
}

.summary-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.summary-total span:first-child {
    color: var(--checkout-black);
    font-size: 15px;
    font-weight: 800;
}

.summary-total strong {
    color: var(--checkout-black);
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.03em;
}


/* =========================================================
   FREE SHIPPING MESSAGE
   ========================================================= */

.shipping-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 23px;
    padding: 14px;
    border-radius: 12px;
    background: #f5fbf7;
    color: #397052;
    font-size: 11px;
    line-height: 1.55;
}

.shipping-note i {
    flex-shrink: 0;
    margin-top: 1px;
    color: var(--checkout-green);
}


/* =========================================================
   CHECKOUT BENEFITS
   ========================================================= */

.checkout-benefits {
    display: grid;
    gap: 12px;
    margin-top: 25px;
    padding-top: 24px;
    border-top: 1px solid var(--checkout-border);
}

.checkout-benefit {
    display: flex;
    align-items: center;
    gap: 11px;
    color: var(--checkout-gray);
    font-size: 11px;
    line-height: 1.4;
}

.checkout-benefit-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 31px;
    width: 31px;
    height: 31px;
    border-radius: 9px;
    background: #f2f2f3;
    color: var(--checkout-black);
    font-size: 12px;
}


/* =========================================================
   EDIT CART
   ========================================================= */

.edit-cart-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 21px;
    color: var(--checkout-gray);
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: color var(--checkout-transition);
}

.edit-cart-link:hover {
    color: var(--checkout-red);
}


/* =========================================================
   EMPTY / ERROR STATE
   ========================================================= */

.checkout-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--checkout-gray);
}

.checkout-empty-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    margin: 0 auto 15px;
    border-radius: 17px;
    background: #f2f2f3;
    color: var(--checkout-dark);
    font-size: 21px;
}

.checkout-empty h3 {
    margin: 0 0 8px;
    color: var(--checkout-black);
    font-size: 17px;
    font-weight: 800;
}

.checkout-empty p {
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
}


/* =========================================================
   SUCCESS MESSAGE
   ========================================================= */

.checkout-success {
    display: none;
    padding: 50px 30px;
    text-align: center;
}

.checkout-success.show {
    display: block;
    animation: successAppear 0.5s ease both;
}

@keyframes successAppear {
    from {
        opacity: 0;
        transform: scale(0.97) translateY(10px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.checkout-success-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: #eaf8ef;
    color: var(--checkout-green);
    font-size: 28px;
}

.checkout-success h2 {
    margin: 0 0 10px;
    color: var(--checkout-black);
    font-size: 27px;
    font-weight: 800;
}

.checkout-success p {
    max-width: 480px;
    margin: 0 auto;
    color: var(--checkout-gray);
    font-size: 14px;
    line-height: 1.7;
}


/* =========================================================
   FORM ANIMATION
   ========================================================= */

.checkout-form-card,
.checkout-summary-card {
    animation: checkoutCardReveal 0.65s ease both;
}

.checkout-summary-card {
    animation-delay: 0.1s;
}

@keyframes checkoutCardReveal {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* =========================================================
   ACCESSIBILITY
   ========================================================= */

.checkout-form-group input:focus-visible,
.checkout-form-group select:focus-visible,
.checkout-form-group textarea:focus-visible,
.place-order-btn:focus-visible,
.payment-option:focus-within {
    outline: 3px solid rgba(255, 41, 56, 0.16);
    outline-offset: 2px;
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 1050px) {

    .checkout-layout {
        grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.8fr);
        gap: 22px;
    }

    .checkout-form-card {
        padding: 30px;
    }

    .checkout-summary-card {
        padding: 27px;
    }

    .checkout-hero {
        padding-top: 135px;
    }
}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 820px) {

    .checkout-hero {
        padding: 120px 0 55px;
    }

    .checkout-hero h1 {
        font-size: clamp(40px, 12vw, 62px);
    }

    .checkout-hero p {
        font-size: 15px;
        line-height: 1.65;
    }

    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .checkout-summary-card {
        position: static;
        order: -1;
    }

    .checkout-form-card {
        padding: 27px 22px;
    }

    .checkout-summary-card {
        padding: 25px 22px;
    }

    .checkout-form-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .checkout-form-group.full-width {
        grid-column: auto;
    }
}


/* =========================================================
   SMALL MOBILE
   ========================================================= */

@media (max-width: 520px) {

    .checkout-container {
        width: min(100% - 24px, 1240px);
    }

    .checkout-hero {
        padding: 105px 0 45px;
    }

    .checkout-section {
        padding-bottom: 70px;
    }

    .checkout-hero h1 {
        font-size: 42px;
        letter-spacing: -0.05em;
    }

    .checkout-hero p {
        font-size: 14px;
    }

    .checkout-form-card,
    .checkout-summary-card {
        border-radius: 17px;
    }

    .checkout-form-card {
        padding: 23px 17px;
    }

    .checkout-summary-card {
        padding: 22px 17px;
    }

    .checkout-card-header {
        margin-bottom: 25px;
    }

    .checkout-card-heading {
        gap: 12px;
    }

    .checkout-heading-icon {
        flex-basis: 42px;
        width: 42px;
        height: 42px;
        border-radius: 12px;
    }

    .checkout-card h2 {
        font-size: 19px;
    }

    .checkout-form-section {
        margin-bottom: 29px;
    }

    .checkout-form-group input,
    .checkout-form-group select {
        height: 51px;
    }

    .payment-option {
        padding: 15px;
    }

    .payment-option-icon {
        width: 35px;
        height: 35px;
    }

    .summary-total strong {
        font-size: 21px;
    }

    .place-order-btn {
        min-height: 55px;
    }
}


/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    .checkout-form-card,
    .checkout-summary-card,
    .checkout-item,
    .checkout-success {
        animation: none;
    }

    .place-order-btn,
    .payment-option,
    .checkout-form-group input,
    .checkout-form-group select,
    .checkout-form-group textarea {
        transition: none;
    }
}