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

:root {
    --black: #0A0A0A;
    --card: #141414;
    --card2: #1C1C1C;
    --red: #C8102E;
    --red-dark: #9E0C24;
    --silver: #C0C0C0;
    --silver-dim: #7A7A7A;
    --white: #F5F5F5;
    --text: #CCCCCC;
    --border: rgba(255, 255, 255, 0.07);
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--black);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ── NAV ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 64px;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(200, 16, 46, 0.25);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.nav-wordmark {
    font-family: var(--font-display);
    font-size: 22px;
    letter-spacing: 0.06em;
    color: var(--white);
    line-height: 1;
}

.nav-wordmark span {
    color: var(--red);
    display: block;
    font-size: 11px;
    letter-spacing: 0.25em;
    font-family: var(--font-body);
    font-weight: 500;
    margin-top: 1px;
}

.nav-back {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--silver-dim);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.2s;
}

.nav-back:hover {
    color: var(--white);
}

.nav-back svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

/* ── LAYOUT ── */
.booking-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 0;
    min-height: 100vh;
    padding-top: 64px;
}

/* ── MAIN FORM AREA ── */
.booking-main {
    padding: 56px 64px 80px;
    border-right: 1px solid var(--border);
}

/* ── PROGRESS BAR ── */
.progress-bar {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 52px;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.progress-step-num {
    width: 28px;
    height: 28px;
    border-radius: 2px;
    border: 1px solid var(--silver-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--silver-dim);
    transition: all 0.25s;
    flex-shrink: 0;
}

.progress-step.active .progress-step-num {
    background: var(--red);
    border-color: var(--red);
    color: var(--white);
}

.progress-step.done .progress-step-num {
    background: transparent;
    border-color: var(--red);
    color: var(--red);
}

.progress-step-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--silver-dim);
    white-space: nowrap;
    transition: color 0.25s;
}

.progress-step.active .progress-step-label {
    color: var(--white);
}

.progress-step.done .progress-step-label {
    color: var(--red);
}

.progress-connector {
    flex: 1;
    height: 1px;
    background: var(--border);
    margin: 0 12px;
    min-width: 20px;
}

.progress-connector.done {
    background: rgba(200, 16, 46, 0.4);
}

/* ── STEP PANELS ── */
.step-panel {
    display: none;
}

.step-panel.active {
    display: block;
}

.step-eyebrow {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 10px;
}

.step-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 4vw, 56px);
    letter-spacing: 0.03em;
    line-height: 0.95;
    color: var(--white);
    margin-bottom: 36px;
}

.red-rule {
    width: 48px;
    height: 3px;
    background: var(--red);
    margin-bottom: 36px;
}

/* ── FORM FIELDS ── */
.field-group {
    display: grid;
    gap: 20px;
    margin-bottom: 24px;
}

.field-group.cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.field-group.cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.field-group.cols-1 {
    grid-template-columns: 1fr;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--silver-dim);
}

.field input,
.field select,
.field textarea {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 15px;
    padding: 14px 16px;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
}

.field select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237A7A7A' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
}

.field select option {
    background: #1C1C1C;
    color: var(--white);
}

.field textarea {
    resize: vertical;
    min-height: 100px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: rgba(200, 16, 46, 0.5);
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--silver-dim);
}

.field-hint {
    font-size: 12px;
    color: var(--silver-dim);
    margin-top: 2px;
}

/* ── VIN OR MANUAL TOGGLE ── */
.vin-toggle {
    display: flex;
    gap: 0;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.vin-tab {
    background: none;
    border: none;
    color: var(--silver-dim);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 10px 20px 10px 0;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
    margin-right: 20px;
}

.vin-tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--red);
    transform: scaleX(0);
    transition: transform 0.25s;
}

.vin-tab.active {
    color: var(--white);
}

.vin-tab.active::after {
    transform: scaleX(1);
}

.vin-section {
    display: none;
}

.vin-section.active {
    display: block;
}

/* ── CASCADING VEHICLE PICKER ── */
.picker-stage {
    margin-bottom: 24px;
}

.picker-stage-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.picker-stage-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--silver-dim);
}

.picker-stage-selected {
    font-size: 13px;
    font-weight: 600;
    color: var(--red);
    letter-spacing: 0.05em;
}

.picker-change-btn {
    background: none;
    border: none;
    color: var(--silver-dim);
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
}

.picker-change-btn:hover {
    color: var(--red);
}

.picker-search {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 14px;
    padding: 11px 14px;
    outline: none;
    width: 100%;
    margin-bottom: 10px;
    transition: border-color 0.2s;
}

.picker-search:focus {
    border-color: rgba(200, 16, 46, 0.5);
}

.picker-search::placeholder {
    color: var(--silver-dim);
}

.picker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 8px;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 4px;
}

.picker-grid::-webkit-scrollbar {
    width: 4px;
}

.picker-grid::-webkit-scrollbar-track {
    background: transparent;
}

.picker-grid::-webkit-scrollbar-thumb {
    background: rgba(200, 16, 46, 0.3);
    border-radius: 2px;
}

.picker-grid.models-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

.picker-chip {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    transition: border-color 0.15s, background 0.15s, color 0.15s;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    user-select: none;
}

.picker-chip:hover {
    border-color: rgba(200, 16, 46, 0.4);
    color: var(--white);
}

.picker-chip.selected {
    border-color: var(--red);
    background: rgba(200, 16, 46, 0.1);
    color: var(--white);
    font-weight: 600;
}

.picker-chip.hidden {
    display: none;
}

.picker-locked {
    background: var(--card);
    border: 1px solid rgba(200, 16, 46, 0.3);
    border-radius: 2px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0;
}

.picker-locked-val {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
}

.picker-locked-sub {
    font-size: 11px;
    color: var(--silver-dim);
    margin-top: 2px;
}

.picker-stage.locked .picker-search,
.picker-stage.locked .picker-grid {
    display: none;
}

.picker-stage.disabled {
    opacity: 0.35;
    pointer-events: none;
}

.picker-stage.disabled .picker-stage-label::after {
    content: ' — select make first';
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: none;
}

.year-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
    padding-right: 4px;
}

.year-row::-webkit-scrollbar {
    width: 4px;
}

.year-row::-webkit-scrollbar-track {
    background: transparent;
}

.year-row::-webkit-scrollbar-thumb {
    background: rgba(200, 16, 46, 0.3);
    border-radius: 2px;
}

.year-chip {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 9px 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    text-align: center;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
    user-select: none;
}

.year-chip:hover {
    border-color: rgba(200, 16, 46, 0.4);
    color: var(--white);
}

.year-chip.selected {
    border-color: var(--red);
    background: rgba(200, 16, 46, 0.1);
    color: var(--white);
    font-weight: 600;
}

.year-chip.disabled {
    opacity: .35;
    cursor: not-allowed;
    pointer-events: none;
}

.year-chip:not(.disabled):hover {
    border-color: var(--red);
}

.year-chip.selected {
    background: var(--red);
    color: #fff;
}

/* ── SERVICE CATEGORY CARDS ── */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 12px;
}

.category-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 28px 20px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    text-align: center;
    user-select: none;
}

.category-card:hover {
    border-color: rgba(200, 16, 46, 0.3);
}

.category-card.selected {
    border-color: var(--red);
    background: rgba(200, 16, 46, 0.08);
}

.category-card svg {
    width: 36px;
    height: 36px;
    stroke: var(--silver-dim);
    margin-bottom: 14px;
    transition: stroke 0.2s;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.category-card.selected svg {
    stroke: var(--red);
}

.category-card-name {
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: 0.05em;
    color: var(--silver);
    transition: color 0.2s;
}

.category-card.selected .category-card-name {
    color: var(--white);
}

.category-card-desc {
    font-size: 12px;
    color: var(--silver-dim);
    margin-top: 6px;
    line-height: 1.5;
}

/* ── SERVICE OPTIONS ── */
.service-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.service-option {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 18px 20px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    user-select: none;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.service-option:hover {
    border-color: rgba(200, 16, 46, 0.3);
}

.service-option.selected {
    border-color: var(--red);
    background: rgba(200, 16, 46, 0.07);
}

.service-option-check {
    width: 18px;
    height: 18px;
    border: 1px solid var(--silver-dim);
    border-radius: 2px;
    flex-shrink: 0;
    margin-top: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.service-option.selected .service-option-check {
    background: var(--red);
    border-color: var(--red);
}

.service-option-check svg {
    width: 11px;
    height: 11px;
    stroke: white;
    stroke-width: 2.5;
    opacity: 0;
    transition: opacity 0.2s;
}

.service-option.selected .service-option-check svg {
    opacity: 1;
}

.service-option-info {
    flex: 1;
}

.service-option-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 2px;
}

.service-option-price {
    font-size: 12px;
    color: var(--red);
    font-weight: 500;
}

.service-option-desc {
    font-size: 12px;
    color: var(--silver-dim);
    margin-top: 2px;
    line-height: 1.4;
}

.multi-hint {
    font-size: 12px;
    color: var(--silver-dim);
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

/* ── DISABLED / BLOCKED SERVICE OPTIONS (e.g. oil change on skid-plate vehicles) ── */
.service-option.disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.service-option.disabled:hover {
    border-color: var(--border);
}

.service-option.disabled .service-option-check {
    opacity: 0.4;
}

.service-option-blocked-note {
    font-size: 11px;
    color: #E8B339;
    margin-top: 6px;
    line-height: 1.4;
}

.service-config-card.service-config-blocked {
    opacity: 0.85;
}

.config-blocked-flag {
    font-size: 12px;
    font-weight: 500;
    color: #E8B339;
    background: rgba(232, 179, 57, 0.1);
    border: 1px solid rgba(232, 179, 57, 0.3);
    border-radius: 2px;
    padding: 10px 12px;
    line-height: 1.5;
}

/* ── SERVICE CONFIGURATOR (Step 3) ── */
.service-config-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 20px;
    margin-bottom: 14px;
}

.service-config-card h3 {
    font-family: var(--font-display);
    font-size: 18px;
    letter-spacing: 0.04em;
    color: var(--white);
    margin-bottom: 14px;
}

.service-config-card .field {
    margin-bottom: 14px;
}

.service-config-card .field:last-of-type {
    margin-bottom: 8px;
}

.config-estimate-flag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #E8B339;
    background: rgba(232, 179, 57, 0.1);
    border: 1px solid rgba(232, 179, 57, 0.3);
    border-radius: 2px;
    padding: 6px 10px;
    margin-bottom: 12px;
    display: inline-block;
}

.config-promo-flag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #4ADE80;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.3);
    border-radius: 2px;
    padding: 6px 10px;
    margin-bottom: 14px;
    display: inline-block;
}

/* ── LOCATION CARDS ── */
.location-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 24px;
}

.location-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 20px 16px;
    cursor: pointer;
    transition: border-color 0.2s;
    text-align: center;
    user-select: none;
}

.location-card:hover {
    border-color: rgba(200, 16, 46, 0.3);
}

.location-card.selected {
    border-color: var(--red);
    background: rgba(200, 16, 46, 0.07);
}

.location-card svg {
    width: 24px;
    height: 24px;
    stroke: var(--silver-dim);
    margin-bottom: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    transition: stroke 0.2s;
}

.location-card.selected svg {
    stroke: var(--red);
}

.location-card-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--silver);
    transition: color 0.2s;
}

.location-card.selected .location-card-label {
    color: var(--white);
}

/* ── DATETIME ROW ── */
.datetime-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

/* ── CONFIRMATION SUMMARY ── */
.confirm-summary {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 32px;
    margin-bottom: 28px;
}

.confirm-section {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.confirm-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.confirm-section-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 12px;
}

.confirm-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    font-size: 14px;
    margin-bottom: 6px;
}

.confirm-row-key {
    color: var(--silver-dim);
    flex-shrink: 0;
}

.confirm-row-val {
    color: var(--white);
    text-align: right;
    font-weight: 500;
}

.confirm-edit {
    background: none;
    border: none;
    color: var(--red);
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0;
    margin-top: 10px;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.confirm-edit:hover {
    color: var(--white);
}

/* ── SUCCESS STATE ── */
.success-panel {
    display: none;
    text-align: center;
    padding: 60px 20px;
}

.success-panel.active {
    display: block;
}

.success-icon {
    width: 72px;
    height: 72px;
    border-radius: 2px;
    background: rgba(200, 16, 46, 0.12);
    border: 1px solid rgba(200, 16, 46, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
}

.success-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--red);
}

.success-title {
    font-family: var(--font-display);
    font-size: 52px;
    letter-spacing: 0.04em;
    color: var(--white);
    margin-bottom: 12px;
}

.success-sub {
    font-size: 15px;
    color: var(--text);
    max-width: 420px;
    margin: 0 auto 36px;
}

/* ── NAV BUTTONS ── */
.step-nav {
    display: flex;
    gap: 12px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--red);
    color: var(--white);
    border: none;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 16px 32px;
    border-radius: 2px;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
    background: var(--red-dark);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--silver);
    border: 1px solid rgba(192, 192, 192, 0.2);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 16px 28px;
    border-radius: 2px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
    text-decoration: none;
}

.btn-ghost:hover {
    border-color: var(--silver);
    color: var(--white);
}

/* ── SIDEBAR ── */
.booking-sidebar {
    background: var(--card);
    padding: 56px 32px 40px;
    position: sticky;
    top: 64px;
    align-self: start;
    height: calc(100vh - 64px);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-title {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--silver-dim);
    margin-bottom: 28px;
}

.sidebar-item {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0.3;
    transition: opacity 0.3s;
}

.sidebar-item.filled {
    opacity: 1;
}

.sidebar-item-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 6px;
}

.sidebar-item-val {
    font-size: 15px;
    color: var(--white);
    font-weight: 500;
    line-height: 1.4;
}

.sidebar-item-sub {
    font-size: 12px;
    color: var(--silver-dim);
    margin-top: 3px;
}

.sidebar-spacer {
    flex: 1;
}

.sidebar-contact {
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.sidebar-contact-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--silver-dim);
    margin-bottom: 10px;
}

.sidebar-contact a {
    display: block;
    font-size: 14px;
    color: var(--silver);
    text-decoration: none;
    margin-bottom: 4px;
    transition: color 0.2s;
}

.sidebar-contact a:hover {
    color: var(--red);
}

/* ── ERROR ── */
.field-error {
    font-size: 12px;
    color: #E8394D;
    margin-top: 4px;
    display: none;
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
    border-color: #E8394D;
}

.field.has-error .field-error {
    display: block;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    .booking-layout {
        grid-template-columns: 1fr;
    }

    .booking-sidebar {
        display: none;
    }

    .booking-main {
        padding: 40px 24px 60px;
    }

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

    .service-options-grid {
        grid-template-columns: 1fr;
    }

    .location-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .field-group.cols-3 {
        grid-template-columns: 1fr;
    }

    .field-group.cols-2 {
        grid-template-columns: 1fr;
    }

    .datetime-row {
        grid-template-columns: 1fr;
    }

    nav {
        padding: 0 20px;
    }

    .progress-step-label {
        display: none;
    }
}

.vin-decoded-card {
    background: #121212;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 20px;
    margin-top: 16px;
}

.vin-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.vin-grid span {
    display: block;
    font-size: 12px;
    opacity: .7;
}

.vin-grid strong {
    display: block;
    margin-top: 4px;
}

.parts-estimate-card {
    margin-top: 30px;
    padding: 20px;
    border: 1px solid #333;
    border-radius: 12px;
}

.estimate-header {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.estimate-total {
    margin-top: 16px;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
}

#serviceConfigurator {
    margin-top: 24px;
}

/* ── ESTIMATE LINE ITEMS (Step 3 parts breakdown) ── */
.estimate-line-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    font-size: 13px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.estimate-line-label {
    color: var(--text);
}

.estimate-line-price {
    color: var(--white);
    font-weight: 600;
    flex-shrink: 0;
}

.estimate-line-item.estimate-subtotal {
    border-top: 1px solid var(--border);
    margin-top: 8px;
    padding-top: 10px;
    font-weight: 600;
}

.estimate-disclaimer {
    font-size: 11px;
    color: var(--silver-dim);
    margin-top: 12px;
    line-height: 1.5;
}

.invoice-preview {
    margin-top: 24px;
    padding: 24px;
    border: 1px solid #333;
    border-radius: 12px;
    background: #111;
}

/* ── CALENDAR ── */
.calendar-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 18px;
    max-width: 420px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.calendar-month-label {
    font-family: var(--font-display);
    font-size: 19px;
    letter-spacing: 0.04em;
    color: var(--white);
}

.calendar-nav-btn {
    background: var(--card2);
    border: 1px solid var(--border);
    color: var(--silver-dim);
    width: 30px;
    height: 30px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.calendar-nav-btn:hover:not(:disabled) {
    border-color: var(--red);
    color: var(--white);
    background: rgba(200, 16, 46, 0.12);
}

.calendar-nav-btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

.calendar-nav-btn svg {
    width: 13px;
    height: 13px;
    stroke: currentColor;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    margin-bottom: 8px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.cal-weekday {
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--silver-dim);
    text-align: center;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.cal-cell {
    aspect-ratio: 1;
}

.cal-day {
    width: 100%;
    height: 100%;
    max-width: 46px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.1s;
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
}

.cal-day:hover {
    background: var(--card2);
    border-color: rgba(200, 16, 46, 0.4);
    color: var(--white);
    transform: translateY(-1px);
}

.cal-day.cal-today {
    background: var(--card2);
    border-color: rgba(200, 16, 46, 0.35);
}

.cal-day.cal-today .cal-day-num {
    color: var(--red);
    font-weight: 700;
}

.cal-day.cal-restricted {
    background: rgba(232, 179, 57, 0.06);
    border-color: rgba(232, 179, 57, 0.3);
}

.cal-day.cal-restricted:hover {
    background: rgba(232, 179, 57, 0.12);
}

.cal-day.cal-selected {
    background: var(--red);
    border-color: var(--red);
    color: var(--white);
    font-weight: 700;
    transform: none;
    box-shadow: 0 2px 12px rgba(200, 16, 46, 0.45);
}

.cal-day.cal-selected:hover {
    transform: none;
    background: var(--red-dark);
}

.cal-day.cal-disabled {
    opacity: 0.25;
    cursor: not-allowed;
    pointer-events: none;
}

.cal-dot {
    position: absolute;
    bottom: 5px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #E8B339;
}

.cal-day.cal-selected .cal-dot {
    background: var(--white);
}

.calendar-legend {
    display: flex;
    gap: 16px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.calendar-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--silver-dim);
}

.calendar-legend-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #E8B339;
}

@media (max-width: 480px) {
    .calendar-wrap {
        padding: 14px;
        max-width: 100%;
    }

    .cal-day {
        font-size: 12px;
    }
}

/* ── TIME WINDOW PILLS (replaces the old <select id="preferredTime">) ── */
.time-pill-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.time-pill {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 16px 18px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

.time-pill:hover:not(.time-pill-disabled) {
    border-color: rgba(200, 16, 46, 0.4);
}

.time-pill-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: var(--silver-dim);
    transition: stroke 0.15s;
}

.time-pill-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.time-pill-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
}

.time-pill-range {
    font-size: 11.5px;
    color: var(--silver-dim);
}

.time-pill.selected {
    border-color: var(--red);
    background: rgba(200, 16, 46, 0.1);
}

.time-pill.selected .time-pill-icon {
    stroke: var(--red);
}

.time-pill-flexible {
    grid-column: 1 / -1;
}

.time-pill-disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.time-pill-disabled .time-pill-label {
    text-decoration: line-through;
}

.time-pill-unavailable-tag {
    margin-left: auto;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #E8B339;
    flex-shrink: 0;
}

@media (max-width: 560px) {
    .time-pill-grid {
        grid-template-columns: 1fr;
    }

    .time-pill-flexible {
        grid-column: auto;
    }
}