/* ==================================================
   LINES 1–12: GLOBAL SETTINGS
================================================== */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    color: #222222;
    line-height: 1.5;
}


/* ==================================================
   LINES 17–35: PAGE HEADER
================================================== */

.account-header {
    padding: 30px 20px;
    background: #111111;
    color: #ffffff;
    text-align: center;
}

.account-header h1 {
    margin: 0 0 8px;
    font-size: 2rem;
}

.account-header p {
    margin: 0;
    color: #dddddd;
}


/* ==================================================
   LINES 40–51: MAIN PAGE CONTAINER
================================================== */

.account-container {
    width: min(1200px, calc(100% - 32px));
    margin: 35px auto;
    display: grid;
    grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.5fr);
    gap: 28px;
    align-items: start;
}


/* ==================================================
   LINES 56–78: ACCOUNT SECTIONS
================================================== */

.account-section {
    padding: 28px;
    border: 1px solid #dddddd;
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 5px 18px rgba(0, 0, 0, 0.07);
}

.account-section h2 {
    margin: 0 0 8px;
    font-size: 1.6rem;
}

.account-section > p {
    margin: 0 0 22px;
    color: #555555;
}

.returning-customer-section {
    position: sticky;
    top: 20px;
}


/* ==================================================
   LINES 83–105: FIELDSETS AND LEGENDS
================================================== */

fieldset {
    margin: 0 0 28px;
    padding: 22px;
    border: 1px solid #d7d7d7;
    border-radius: 10px;
    background: #fafafa;
}

legend {
    padding: 0 10px;
    font-size: 1.15rem;
    font-weight: 800;
    color: #222222;
}

.registration-section fieldset:last-of-type {
    margin-bottom: 22px;
}


/* ==================================================
   LINES 110–124: FORM GRID
================================================== */

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

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


/* ==================================================
   LINES 129–145: LABELS AND OPTIONAL TEXT
================================================== */

.form-group label {
    font-weight: 700;
}

.form-group label span[aria-hidden="true"],
.captcha-section p span[aria-hidden="true"] {
    color: #b00020;
}

.optional-text {
    margin-left: 5px;
    color: #666666;
    font-size: 0.85rem;
    font-weight: 400;
}


/* ==================================================
   LINES 150–184: INPUTS AND SELECTS
================================================== */

.form-group input,
.form-group select {
    width: 100%;
    min-height: 46px;
    padding: 11px 12px;
    border: 1px solid #bbbbbb;
    border-radius: 7px;
    background: #ffffff;
    color: #222222;
    font: inherit;
}

.form-group input:hover,
.form-group select:hover {
    border-color: #777777;
}

.form-group input:focus,
.form-group select:focus {
    outline: 2px solid #222222;
    outline-offset: 2px;
    border-color: #222222;
}

.form-group input:disabled,
.form-group select:disabled {
    cursor: not-allowed;
    background: #eeeeee;
    color: #666666;
}

.form-group small {
    color: #666666;
    font-size: 0.85rem;
}


/* ==================================================
   LINES 189–210: CHECKBOXES
================================================== */

.checkbox-group {
    margin-bottom: 20px;
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-weight: 700;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
    margin: 2px 0 0;
    cursor: pointer;
}


/* ==================================================
   LINES 215–230: BILLING ADDRESS
================================================== */

.billing-address-fields {
    padding-top: 8px;
}

input:disabled,
select:disabled {
    opacity: 0.75;
}


/* ==================================================
   LINES 235–268: CAPTCHA AREA
================================================== */

.captcha-section {
    margin-top: 18px;
}

.captcha-section > p {
    margin: 0 0 10px;
    font-weight: 700;
}

.captcha-placeholder {
    width: min(100%, 310px);
    min-height: 78px;
    display: flex;
    align-items: center;
    padding: 16px 18px;
    border: 1px solid #bbbbbb;
    border-radius: 5px;
    background: #f9f9f9;
    color: #222222;
    font-weight: 700;
}

.captcha-placeholder::before {
    content: "";
    width: 26px;
    height: 26px;
    margin-right: 14px;
    border: 2px solid #777777;
    border-radius: 3px;
    background: #ffffff;
}


/* ==================================================
   LINES 273–301: BUTTONS
================================================== */

.account-button {
    width: 100%;
    min-height: 50px;
    padding: 12px 18px;
    border: none;
    border-radius: 8px;
    background: #111111;
    color: #ffffff;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    transition:
        background 0.2s ease,
        transform 0.2s ease;
}

.account-button:hover {
    background: #333333;
}

.account-button:active {
    transform: translateY(1px);
}

.account-button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}


/* ==================================================
   LINES 306–341: ERROR AND SUCCESS MESSAGES
================================================== */

.field-error {
    min-height: 18px;
    margin: 0;
    color: #b00020;
    font-size: 0.85rem;
    font-weight: 700;
}

.input-error {
    border-color: #b00020 !important;
    outline: 2px solid rgba(176, 0, 32, 0.15);
}

.form-message {
    min-height: 22px;
    margin: 14px 0 0;
    font-weight: 700;
}

.form-message.error {
    padding: 11px 13px;
    border: 1px solid #b00020;
    border-radius: 7px;
    background: #fff1f3;
    color: #b00020;
}

.form-message.success {
    padding: 11px 13px;
    border: 1px solid #176b2c;
    border-radius: 7px;
    background: #eef9f0;
    color: #176b2c;
}


/* ==================================================
   LINES 346–361: RETURNING CUSTOMER FORM
================================================== */

#returningCustomerForm {
    display: grid;
    gap: 18px;
}

#returningCustomerForm .form-message {
    margin-top: 0;
}


/* ==================================================
   LINES 366–382: TABLET LAYOUT
================================================== */

@media (max-width: 900px) {
    .account-container {
        grid-template-columns: 1fr;
    }

    .returning-customer-section {
        position: static;
    }
}


/* ==================================================
   LINES 387–423: MOBILE LAYOUT
================================================== */

@media (max-width: 600px) {
    .account-header {
        padding: 24px 16px;
    }

    .account-header h1 {
        font-size: 1.65rem;
    }

    .account-container {
        width: min(100% - 20px, 1200px);
        margin: 18px auto;
        gap: 18px;
    }

    .account-section {
        padding: 20px;
    }

    fieldset {
        padding: 17px;
    }

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

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

    .captcha-placeholder {
        width: 100%;
    }
}