:root {
    --bg: #f4f5f5;
    --surface: #ffffff;
    --surface2: #f0f1f3;
    --border: #d0d3d9;
    --stm-a: #1f60c4;
    --stm-b: #3274d9;
    --esp-a: #b45309;
    --esp-b: #d97706;
    --text: #1c1f2e;
    --text2: #5a5f73;
    --text3: #8d95a8;
    --ok: #1a7f4b;
    --err: #c4291c;
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(31, 96, 196, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(31, 96, 196, .04) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: 0;
}

.wrapper {
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.brand-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding: 0 2px 0 50px;
    height: 40px;
    background-image: url('logo.png');
    background-repeat: no-repeat;
    background-position: left center;
    background-size: 40px 40px;
}

.brand-sep {
    width: 1px;
    height: 18px;
    background: var(--border);
}

.brand-lbl {
    font-size: 11px;
    color: var(--text3);
    font-family: var(--mono);
    letter-spacing: .04em;
}

.tab-strip {
    display: flex;
    background: var(--surface);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    overflow: hidden;
}

.tab-btn {
    flex: 1;
    padding: 10px 12px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--mono);
    color: var(--text3);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    transition: color .15s, background .15s, border-color .15s;
    letter-spacing: .02em;
}

.tab-btn:hover {
    color: var(--text);
    background: var(--surface2);
}

.tab-btn.act-stm {
    color: var(--stm-a);
    border-bottom-color: var(--stm-a);
    background: var(--surface);
}

.tab-btn.act-esp {
    color: var(--esp-a);
    border-bottom-color: var(--esp-a);
    background: var(--surface);
}

.pill {
    font-size: 9px;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 3px;
    letter-spacing: .5px;
}

.pill-stm {
    background: #dbeafe;
    color: var(--stm-a);
}

.pill-esp {
    background: #fef3c7;
    color: var(--esp-a);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 0 4px 4px;
    padding: 16px 20px 20px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .08), 0 4px 16px rgba(0, 0, 0, .04);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 0;
}

.card.stm::before {
    background: linear-gradient(90deg, var(--stm-a), var(--stm-b));
}

.card.esp::before {
    background: linear-gradient(90deg, var(--esp-a), var(--esp-b));
}

.pane {
    display: none;
}

.pane.active {
    display: block;
}

.wip-overlay {
    position: absolute;
    inset: 0;
    z-index: 20;
    background: rgba(255, 255, 255, .75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border-radius: 0 0 4px 4px;
}

.wip-badge {
    background: #fffbeb;
    border: 1.5px solid var(--esp-b);
    border-radius: 8px;
    padding: 14px 22px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 2px 12px rgba(180, 83, 9, .1);
}

.wip-icon {
    font-size: 26px;
    line-height: 1;
}

.wip-text strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--esp-a);
    font-family: var(--mono);
    letter-spacing: .06em;
}

.wip-text span {
    font-size: 11px;
    color: var(--text2);
    font-family: var(--mono);
    margin-top: 2px;
    display: block;
}

.form-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.chip-logo {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    font-family: var(--mono);
    color: white;
    flex-shrink: 0;
    letter-spacing: -.02em;
}

.chip-logo.stm {
    background: var(--stm-a);
}

.chip-logo.esp {
    background: var(--esp-a);
}

h2 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -.01em;
}

.subtitle {
    font-size: 11px;
    color: var(--text3);
    font-family: var(--mono);
    margin-top: 1px;
}

.section-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-family: var(--mono);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.section-label.stm {
    color: var(--stm-a);
}

.section-label.esp {
    color: var(--esp-a);
}

.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

label {
    font-size: 11px;
    color: var(--text2);
    font-weight: 500;
    margin-bottom: 4px;
    display: block;
}

input,
select {
    width: 100%;
    padding: 6px 10px;
    margin-bottom: 10px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-size: 13px;
    font-family: var(--mono);
    outline: none;
    transition: border .15s, box-shadow .15s;
}

input.stm:focus {
    border-color: var(--stm-a);
    box-shadow: 0 0 0 2px rgba(31, 96, 196, .15);
    background: var(--surface);
}

input.esp:focus {
    border-color: var(--esp-a);
    box-shadow: 0 0 0 2px rgba(180, 83, 9, .15);
    background: var(--surface);
}

input::placeholder {
    color: var(--text3);
}

.row {
    display: flex;
    gap: 10px;
}

.row>div {
    flex: 1;
}

.divider {
    margin: 8px 0;
}

.btn {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 3px;
    color: white;
    font-size: 13px;
    font-family: var(--sans);
    font-weight: 600;
    cursor: pointer;
    letter-spacing: .02em;
    margin-top: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    transition: filter .15s, box-shadow .15s;
}

.btn.stm {
    background: var(--stm-a);
}

.btn.stm:hover {
    filter: brightness(1.12);
    box-shadow: 0 2px 8px rgba(31, 96, 196, .3);
}

.btn.esp {
    background: var(--esp-a);
}

.btn:disabled {
    background: var(--border) !important;
    color: var(--text3) !important;
    cursor: not-allowed;
    filter: none !important;
    box-shadow: none !important;
}

.msg-area {
    margin-top: 12px;
    text-align: center;
    font-size: 12px;
    font-family: var(--mono);
    min-height: 18px;
}

.err {
    color: var(--err);
}

.ok {
    color: var(--ok);
}

.hidden {
    display: none !important;
}