:root {
    --teal: #0e6b60;
    --teal-dk: #073f39;
    --teal-lt: #e7f1ef;
    --ink: #12211f;
    --body: #5a6b68;
    --line: #dde5e3;
    --field: #f7faf9;
    --white: #ffffff;
    --red: #c0392b;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.formBody{
        background: #F0F4F3;
        padding: 50px 0;
}
.inquiry-card {
    max-width: 840px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 44px 40px;
    box-shadow: 0 14px 44px rgba(14, 107, 96, 0.09);
}

/* header */
.form-head {
    text-align: center;
    margin-bottom: 34px;
}
.form-head .eyebrow {
    font-family: "Archivo", sans-serif;
    font-weight: 700;
    font-size: 11.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--teal);
    margin-bottom: 10px;
}
.form-head h2 {
    font-size: clamp(24px, 3.4vw, 32px);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}
.form-head p {
    color: var(--body);
    font-size: 15.5px;
    max-width: 520px;
    margin: 0 auto;
}

/* section label */
.sec-label {
    font-family: "Archivo", sans-serif;
    font-weight: 700;
    font-size: 11.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--teal);
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 30px 0 18px;
}
.sec-label:first-of-type {
    margin-top: 0;
}
.sec-label::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--line);
}

/* grid + fields */
.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px 22px;
}
.field.full {
    grid-column: 1/-1;
}
label {
    display: block;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 7px;
}
label .req {
    color: var(--red);
    margin-left: 2px;
}
label .opt {
    color: #93a3a0;
    font-weight: 400;
    font-size: 12px;
    margin-left: 4px;
}

input,
select,
textarea {
    width: 100%;
    font-family: "Inter", sans-serif;
    font-size: 15px;
    color: var(--ink);
    background: var(--field);
    border: 1.5px solid var(--line);
    border-radius: 9px;
    padding: 13px 14px;
    transition: 0.16s;
}
input::placeholder,
textarea::placeholder {
    color: #9caca9;
}
input:focus,
select:focus,
textarea:focus {
    outline: none;
    background: var(--white);
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(14, 107, 96, 0.1);
}
select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235A6B68' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}
textarea {
    resize: vertical;
    min-height: 96px;
}
.hint {
    font-size: 12px;
    color: #93a3a0;
    margin-top: 6px;
}

/* checkbox group for devices */
.chk-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.chk {
    display: flex;
    align-items: center;
    gap: 9px;
    background: var(--field);
    border: 1.5px solid var(--line);
    border-radius: 9px;
    padding: 11px 13px;
    font-size: 14px;
    cursor: pointer;
    transition: 0.16s;
    user-select: none;
}
.chk:hover {
    border-color: #b8cfcb;
}
.chk input {
    width: 16px;
    height: 16px;
    accent-color: var(--teal);
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}
.chk.on {
    border-color: var(--teal);
    background: var(--teal-lt);
}

/* device rows with quantity */
.dev-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.dev-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--field);
    border: 1.5px solid var(--line);
    border-radius: 9px;
    padding: 9px 12px;
    transition: 0.16s;
}
.dev-row:hover {
    border-color: #b8cfcb;
}
.dev-row.on {
    border-color: var(--teal);
    background: var(--teal-lt);
}
.dev-check {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--ink);
    cursor: pointer;
    margin: 0;
    flex: 1;
    user-select: none;
}
.dev-check input {
    width: 16px;
    height: 16px;
    accent-color: var(--teal);
    cursor: pointer;
    flex-shrink: 0;
    padding: 0;
}
.dev-qty {
    width: 118px;
    flex-shrink: 0;
    padding: 7px 8px;
    font-size: 13px;
    border-radius: 7px;
    background: var(--white);
    border: 1.5px solid var(--line);
    background-image: none;
}
.dev-qty:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    background: #eef2f1;
}

.dev-row.locked {
    background: var(--teal-lt);
    border-color: var(--teal);
    opacity: 1;
}
.dev-row.locked .dev-check {
    cursor: default;
}
.dev-row.locked .dev-check input {
    opacity: 0.75;
    cursor: default;
}
.dev-tag {
    font-family: "Archivo", sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--teal);
    background: var(--white);
    border: 1px solid #c5ddd8;
    border-radius: 20px;
    padding: 4px 10px;
    white-space: nowrap;
}

/* live configuration summary */
.config-summary {
    margin-top: 16px;
    background: var(--teal-lt);
    border: 1px solid #c5ddd8;
    border-radius: 10px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.config-summary .cs-label {
    font-family: "Archivo", sans-serif;
    font-weight: 700;
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--teal);
}
.config-summary .cs-value {
    font-size: 15.5px;
    font-weight: 600;
    color: var(--teal-dk);
    line-height: 1.45;
}
.config-summary .cs-value.empty {
    font-weight: 400;
    color: #7f918e;
    font-size: 14px;
}

/* submit */
.submit {
    margin-top: 30px;
    width: 100%;
    border: none;
    cursor: pointer;
    background: var(--teal-dk);
    color: var(--white);
    font-family: "Inter", sans-serif;
    font-weight: 600;
    font-size: 16.5px;
    padding: 17px;
    border-radius: 10px;
    transition: 0.18s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.submit:hover {
    background: var(--teal);
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(14, 107, 96, 0.25);
}
.submit:disabled {
    opacity: 0.6;
    cursor: wait;
    transform: none;
}

.privacy {
    text-align: center;
    color: var(--body);
    font-size: 13px;
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
}

/* validation */
.err {
    color: var(--red);
    font-size: 12.5px;
    margin-top: 6px;
    display: none;
}
.field.invalid input,
.field.invalid select {
    border-color: var(--red);
    background: #fdf5f4;
}
.field.invalid .err {
    display: block;
}

/* success */
.success {
    display: none;
    text-align: center;
    padding: 30px 10px;
}
.check {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: var(--teal);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.check svg {
    width: 38px;
    height: 38px;
}
.check svg path {
    stroke: #fff;
    stroke-width: 4;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: draw 0.6s 0.15s ease forwards;
}
@keyframes draw {
    to {
        stroke-dashoffset: 0;
    }
}
.success h3 {
    font-size: 25px;
    font-weight: 700;
    margin-bottom: 10px;
}
.success p {
    color: var(--body);
    font-size: 15.5px;
    max-width: 460px;
    margin: 0 auto;
}
.success .ref {
    margin-top: 18px;
    font-family: "Archivo", sans-serif;
    font-size: 13px;
    color: var(--teal);
    letter-spacing: 0.06em;
}

@media (max-width: 680px) {
    body {
        padding: 20px 14px;
    }
    .inquiry-card {
        padding: 30px 22px;
    }
    .grid {
        grid-template-columns: 1fr;
    }
    .chk-grid {
        grid-template-columns: 1fr 1fr;
    }

    .dev-list {
        grid-template-columns: 1fr;
    }
}