/**
 * Reusable Material-style form fields (floating labels, ripple, validation).
 * Scope: wrap content in .oxygen-material-form and set --brand-* as needed.
 * Used by: trial guest form, SSO login, and future pages.
 */

.oxygen-material-form {
    --brand-primary: #2670bb;
    --brand-dark: #1e3a8a;
    --brand-darker: #152b66;
    --bg-body: #f8fafc;
    --bg-panel: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-light: #e2e8f0;
    --error-color: #ef4444;
    --error-bg: #fef2f2;
    --radius-lg: 1rem;
    --radius-md: 0.5rem;
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    box-sizing: border-box;
    line-height: 1.5;
    color: var(--text-main);
    font-family: 'robotoregular', Arial, Helvetica, sans-serif;
}

.oxygen-material-form *,
.oxygen-material-form *::before,
.oxygen-material-form *::after {
    box-sizing: border-box;
}

.oxygen-material-form .form-wrapper {
    margin-bottom: 1.5rem;
}

.oxygen-material-form .md-form-field {
    position: relative;
    background-color: var(--bg-body);
    border-radius: 4px 4px 0 0;
    border-bottom: 1px solid var(--text-muted);
    transition: background-color 0.2s ease;
    display: flex;
    align-items: flex-end;
}

.oxygen-material-form .md-form-field:hover {
    background-color: #f1f5f9;
}

.oxygen-material-form .md-input,
.oxygen-material-form .md-select {
    width: 100%;
    padding: 1.5rem 1rem 0.5rem;
    background: transparent;
    border: none;
    outline: none;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-main);
    line-height: 1.2;
}

.oxygen-material-form .md-input::placeholder {
    color: transparent;
    opacity: 0;
}

.oxygen-material-form .md-label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    font-size: 0.95rem;
    color: var(--text-muted);
    pointer-events: none;
    transform-origin: top left;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.oxygen-material-form .required-asterisk {
    color: var(--error-color);
    margin-left: 0.15rem;
}

.oxygen-material-form .md-input:focus ~ .md-label,
.oxygen-material-form .md-input:not(:placeholder-shown) ~ .md-label {
    top: 0.35rem;
    font-size: 0.75rem;
    color: var(--brand-primary);
}

.oxygen-material-form .md-input:not(:focus):not(:placeholder-shown) ~ .md-label {
    color: var(--text-muted);
}

.oxygen-material-form .md-ripple {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--brand-primary);
    transform: scaleX(0);
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.oxygen-material-form .md-input:focus ~ .md-ripple,
.oxygen-material-form .md-select:focus ~ .md-ripple {
    transform: scaleX(1);
}

.oxygen-material-form .md-select {
    appearance: none;
    cursor: pointer;
    padding-right: 2.5rem;
    min-height: 50px;
}

.oxygen-material-form .md-select:focus ~ .md-label,
.oxygen-material-form .md-select:valid ~ .md-label {
    top: 0.35rem;
    font-size: 0.75rem;
    color: var(--brand-primary);
}

.oxygen-material-form .md-select:not(:focus):valid ~ .md-label {
    color: var(--text-muted);
}

.oxygen-material-form .select-arrow {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
    width: 1.2rem;
    height: 1.2rem;
    transition: color 0.2s ease;
}

.oxygen-material-form .md-select:focus ~ .select-arrow {
    color: var(--brand-primary);
}

/* Validation: .bg-red (trial) and .is-invalid (SSO / Bootstrap) */
.oxygen-material-form .md-form-field.has-error,
.oxygen-material-form .md-form-field:has(.bg-red),
.oxygen-material-form .md-form-field:has(.is-invalid) {
    border-bottom-color: var(--error-color);
}

.oxygen-material-form .md-form-field.has-error .md-label,
.oxygen-material-form .md-form-field:has(.bg-red) .md-label,
.oxygen-material-form .md-form-field:has(.is-invalid) .md-label {
    color: var(--error-color) !important;
}

.oxygen-material-form .md-form-field.has-error .md-ripple,
.oxygen-material-form .md-form-field:has(.bg-red) .md-ripple,
.oxygen-material-form .md-form-field:has(.is-invalid) .md-ripple {
    background-color: var(--error-color);
}

.oxygen-material-form .md-form-field.has-error .select-arrow,
.oxygen-material-form .md-form-field:has(.bg-red) .select-arrow,
.oxygen-material-form .md-form-field:has(.is-invalid) .select-arrow {
    color: var(--error-color);
}

.oxygen-material-form .error-message {
    display: none;
    color: var(--error-color);
    font-size: 0.75rem;
    margin-top: 0.35rem;
    padding-left: 1rem;
}



.oxygen-material-form .checkbox-section > p {
    font-size: 0.875rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.oxygen-material-form .checkbox-label {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    cursor: pointer;
}

.oxygen-material-form .checkbox-label input[type="checkbox"] {
    margin-top: 0.15rem;
    width: 1rem;
    height: 1rem;
    accent-color: var(--brand-dark);
    cursor: pointer;
    flex-shrink: 0;
}

.oxygen-material-form .checkbox-text {
    margin-left: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

.oxygen-material-form .checkbox-label:hover .checkbox-text {
    color: var(--text-main);
}

.oxygen-material-form .privacy-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.oxygen-material-form .privacy-text a {
    color: var(--brand-primary);
    font-weight: 500;
    text-decoration: underline;
}

.oxygen-material-form .privacy-text a:hover {
    color: var(--brand-dark);
}

.oxygen-material-form .btn-submit {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.75rem 1.5rem;
    min-width: 160px;
    margin-top: 0;
    background-color: var(--brand-dark);
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.oxygen-material-form .btn-submit:hover {
    background-color: var(--brand-darker);
    opacity: 1 !important;
}

.oxygen-material-form .btn-submit:active {
    transform: scale(0.98);
}

@media (max-width: 639px) {
    .oxygen-material-form .btn-submit {
        width: 100%;
    }
}