/* ============================================
   Trappenstore Configurator
   Trappenmaat-style design
   ============================================ */

:root {
    --tsc-primary: #d22d12;
    --tsc-primary-hover: #b82510;
    --tsc-primary-light: #fef2f0;
    --tsc-primary-subtle: #fff8f6;
    --tsc-text: #2D3748;
    --tsc-text-dark: #1A202C;
    --tsc-text-secondary: #4A5568;
    --tsc-text-muted: #718096;
    --tsc-border: #E2E8F0;
    --tsc-border-light: #EDF2F7;
    --tsc-bg: #ffffff;
    --tsc-bg-page: #F7FAFC;
    --tsc-bg-input: #ffffff;
    --tsc-success: #38A169;
    --tsc-success-bg: #F0FFF4;
    --tsc-error: #E53E3E;
    --tsc-error-bg: #FED7D7;

    --tsc-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    --tsc-radius: 6px;
    --tsc-radius-lg: 10px;
    --tsc-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    --tsc-shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --tsc-transition: 0.2s ease;
}

/* --- Scoped reset --- */
.tsc-configurator {
    font-family: var(--tsc-font);
    font-size: 15px;
    line-height: 1.5;
    color: var(--tsc-text);
    background: var(--tsc-bg-page);
    border-radius: var(--tsc-radius-lg);
    overflow: hidden;
    max-width: 1200px;
    margin: 0 auto;
}

.tsc-configurator *,
.tsc-configurator *::before,
.tsc-configurator *::after {
    box-sizing: border-box;
}

/* ============================================
   Header Bar
   ============================================ */
.tsc-header {
    background: var(--tsc-primary);
    color: #fff;
    padding: 20px 28px;
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.tsc-header__title {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    color: #fff;
}

.tsc-header__subtitle {
    font-size: 14px;
    opacity: 0.75;
}

/* ============================================
   2-Column Layout (content + sidebar)
   ============================================ */
.tsc-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    min-height: 600px;
}

/* ============================================
   Step Navigation Tabs (horizontal)
   ============================================ */
.tsc-steps-nav {
    background: var(--tsc-bg);
    border-bottom: 1px solid var(--tsc-border-light);
    overflow-x: auto;
    padding: 0;
}

.tsc-steps-nav__list {
    display: flex;
    flex-direction: row;
}

.tsc-steps-nav__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    border: none;
    border-right: 1px solid var(--tsc-border-light);
    background: transparent;
    cursor: pointer;
    font-family: var(--tsc-font);
    font-size: 14px;
    color: var(--tsc-text-secondary);
    text-align: left;
    transition: all var(--tsc-transition);
    white-space: nowrap;
    position: relative;
}

.tsc-steps-nav__item:last-child {
    border-right: none;
}

.tsc-steps-nav__item:hover {
    background: var(--tsc-bg-page);
}

.tsc-steps-nav__number {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    background: var(--tsc-bg-page);
    color: var(--tsc-text-muted);
    border: 2px solid var(--tsc-border-light);
    transition: all var(--tsc-transition);
}

.tsc-steps-nav__label {
    font-weight: 500;
    transition: color var(--tsc-transition);
}

/* Active state */
.tsc-steps-nav__item--active {
    background: var(--tsc-primary-light);
}

.tsc-steps-nav__item--active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--tsc-primary);
}

.tsc-steps-nav__item--active .tsc-steps-nav__number {
    background: var(--tsc-primary);
    border-color: var(--tsc-primary);
    color: #fff;
}

.tsc-steps-nav__item--active .tsc-steps-nav__label {
    color: var(--tsc-primary);
    font-weight: 600;
}

/* Completed state */
.tsc-steps-nav__item--completed .tsc-steps-nav__number {
    background: var(--tsc-success);
    border-color: var(--tsc-success);
    color: #fff;
}

.tsc-steps-nav__item--completed .tsc-steps-nav__label {
    color: var(--tsc-text);
}

/* ============================================
   Center: Main Content Area
   ============================================ */
.tsc-main {
    padding: 28px 32px;
    min-width: 0;
    background: var(--tsc-bg-page);
}

/* ============================================
   Steps
   ============================================ */
.tsc-step {
    display: none;
}

.tsc-step--active {
    display: block;
    animation: tscFadeIn 0.25s ease forwards;
}

@keyframes tscFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.tsc-step__content {
    background: var(--tsc-bg);
    border: 1px solid var(--tsc-border-light);
    border-radius: var(--tsc-radius-lg);
    padding: 28px;
    box-shadow: var(--tsc-shadow);
}

.tsc-step__title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 6px;
    color: var(--tsc-text-dark);
}

.tsc-step__description {
    font-size: 14px;
    color: var(--tsc-text-secondary);
    margin: 0 0 24px;
    line-height: 1.6;
}

.tsc-step__layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tsc-step__fields {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tsc-step__images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.tsc-step__image {
    width: 100%;
    height: auto;
    border-radius: var(--tsc-radius);
    border: 1px solid var(--tsc-border-light);
}

/* Shake animation */
.tsc-step--shake {
    animation: tscShake 0.35s ease;
}

@keyframes tscShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

/* ============================================
   Form Fields (Trappenmaat style)
   ============================================ */
.tsc-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.tsc-field__label {
    font-size: 13px;
    font-weight: 600;
    color: var(--tsc-text);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.tsc-field__unit {
    font-weight: 400;
    color: var(--tsc-text-muted);
    text-transform: none;
}

.tsc-field__input {
    width: 100%;
    height: 45px;
    padding: 0 14px;
    border: 1px solid var(--tsc-border);
    border-radius: var(--tsc-radius);
    font-size: 15px;
    font-family: var(--tsc-font);
    color: var(--tsc-text);
    background: var(--tsc-bg-input);
    transition: border-color var(--tsc-transition), box-shadow var(--tsc-transition);
    -moz-appearance: textfield;
}

.tsc-field__input::-webkit-outer-spin-button,
.tsc-field__input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.tsc-field__input:focus {
    outline: none;
    border-color: var(--tsc-primary);
    box-shadow: 0 0 0 2px var(--tsc-primary-light);
}

.tsc-field__hint {
    font-size: 12px;
    color: var(--tsc-text-muted);
}

.tsc-field__error {
    font-size: 12px;
    color: var(--tsc-error);
}

.tsc-field__error:empty {
    display: none;
}

/* Error state */
.tsc-field--error .tsc-field__input {
    border-color: var(--tsc-error);
    background: var(--tsc-error-bg);
}

.tsc-field--error .tsc-checkbox__mark {
    border-color: var(--tsc-error);
}

/* ============================================
   Custom Checkbox (Trappenmaat style)
   ============================================ */
.tsc-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.tsc-checkbox__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.tsc-checkbox__mark {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--tsc-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    background: var(--tsc-bg);
    transition: all var(--tsc-transition);
}

.tsc-checkbox__input:checked + .tsc-checkbox__mark {
    background: var(--tsc-primary);
    border-color: var(--tsc-primary);
    color: #fff;
}

.tsc-checkbox__label {
    font-size: 14px;
    color: var(--tsc-text);
}

/* ============================================
   Option Cards (checkbox kaarten voor stap 3)
   ============================================ */
.tsc-option-card {
    display: block;
    cursor: pointer;
}

.tsc-option-card__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.tsc-option-card__box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--tsc-bg);
    border: 2px solid var(--tsc-border);
    border-radius: var(--tsc-radius);
    transition: all var(--tsc-transition);
}

.tsc-option-card:hover .tsc-option-card__box {
    border-color: var(--tsc-primary);
    background: var(--tsc-primary-subtle);
}

.tsc-option-card__input:checked + .tsc-option-card__box {
    border-color: var(--tsc-primary);
    background: var(--tsc-primary-light);
}

.tsc-option-card__check {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border: 2px solid var(--tsc-border);
    border-radius: var(--tsc-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    background: var(--tsc-bg);
    transition: all var(--tsc-transition);
}

.tsc-option-card__input:checked + .tsc-option-card__box .tsc-option-card__check {
    background: var(--tsc-primary);
    border-color: var(--tsc-primary);
    color: #fff;
}

.tsc-option-card__label {
    font-size: 15px;
    font-weight: 600;
    color: var(--tsc-text-dark);
    flex: 1;
}

.tsc-option-card__price {
    font-size: 13px;
    font-weight: 500;
    color: var(--tsc-text-muted);
    transition: color var(--tsc-transition);
}

.tsc-option-card__input:checked + .tsc-option-card__box .tsc-option-card__price {
    color: var(--tsc-primary);
    font-weight: 600;
}

/* Toggle for step 4 (direct bestellen) - keep simple toggle */
.tsc-toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.tsc-toggle__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.tsc-toggle__slider {
    position: absolute;
    inset: 0;
    background: #d0d5dd;
    border-radius: 26px;
    cursor: pointer;
    transition: background var(--tsc-transition);
}

.tsc-toggle__slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform var(--tsc-transition);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.tsc-toggle__input:checked + .tsc-toggle__slider {
    background: var(--tsc-primary);
}

.tsc-toggle__input:checked + .tsc-toggle__slider::before {
    transform: translateX(22px);
}

.tsc-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--tsc-bg-page);
    border: 1px solid var(--tsc-border-light);
    border-radius: var(--tsc-radius);
}

.tsc-toggle-row__label {
    font-size: 14px;
    font-weight: 500;
    color: var(--tsc-text);
}

.tsc-toggle-row--prominent {
    background: var(--tsc-primary-subtle);
    border-color: var(--tsc-primary);
    padding: 14px 18px;
}

.tsc-toggle-row--prominent .tsc-toggle-row__label {
    font-weight: 600;
}

/* ============================================
   Finishing Sections (Step 3)
   ============================================ */
.tsc-finishing-section {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--tsc-border-light);
}

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

.tsc-finishing-section__header {
    margin-bottom: 14px;
}

.tsc-finishing-section__title {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 2px;
    color: var(--tsc-text-dark);
}

.tsc-finishing-section__desc {
    font-size: 13px;
    color: var(--tsc-text-secondary);
    margin: 0;
}

.tsc-finishing-section__layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tsc-finishing-section__options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tsc-finishing-section__options--grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.tsc-finishing-section__images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.tsc-finishing-section__image {
    width: 100%;
    height: auto;
    border-radius: var(--tsc-radius);
    border: 1px solid var(--tsc-border-light);
}

/* ============================================
   Material Cards (Step 4)
   ============================================ */
.tsc-materials {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}

.tsc-material-card {
    position: relative;
    border: 2px solid var(--tsc-border);
    border-radius: var(--tsc-radius);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--tsc-transition);
    background: var(--tsc-bg);
    display: flex;
    flex-direction: row;
    align-items: center;
}

.tsc-material-card:hover {
    border-color: var(--tsc-primary);
    background: var(--tsc-primary-subtle);
}

.tsc-material-card--selected {
    border-color: var(--tsc-primary);
    background: var(--tsc-primary-light);
}

.tsc-material-card__input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tsc-material-card__check {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: var(--tsc-radius);
    border: 2px solid var(--tsc-border);
    background: var(--tsc-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    transition: all var(--tsc-transition);
    margin-left: 16px;
}

.tsc-material-card--selected .tsc-material-card__check {
    background: var(--tsc-primary);
    border-color: var(--tsc-primary);
    color: #fff;
}

.tsc-material-card__image {
    width: 72px;
    height: 72px;
    min-width: 72px;
    object-fit: cover;
    display: block;
    border-right: 1px solid var(--tsc-border-light);
}

.tsc-material-card__info {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.tsc-material-card__name {
    font-weight: 600;
    font-size: 15px;
    color: var(--tsc-text-dark);
    margin-bottom: 2px;
}

.tsc-material-card__price {
    font-size: 13px;
    color: var(--tsc-text-muted);
    font-weight: 500;
}

.tsc-material-card--selected .tsc-material-card__price {
    color: var(--tsc-primary);
    font-weight: 600;
}

/* ============================================
   Buttons (Trappenmaat style - more angular)
   ============================================ */
.tsc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    border: none;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--tsc-font);
    cursor: pointer;
    transition: all var(--tsc-transition);
    text-decoration: none;
    line-height: 1;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tsc-btn--primary {
    background: var(--tsc-primary);
    color: #fff;
}

.tsc-btn--primary:hover {
    background: var(--tsc-primary-hover);
}

.tsc-btn--outline {
    background: var(--tsc-bg);
    color: var(--tsc-text);
    border: 1px solid var(--tsc-border);
}

.tsc-btn--outline:hover {
    background: var(--tsc-bg-page);
    border-color: var(--tsc-text-muted);
}

.tsc-btn--large {
    padding: 14px 28px;
    font-size: 15px;
}

.tsc-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* Loading state */
.tsc-btn--loading {
    color: transparent !important;
    pointer-events: none;
}

.tsc-btn--loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: tscSpin 0.5s linear infinite;
}

.tsc-btn--outline.tsc-btn--loading::after {
    border-color: rgba(0, 0, 0, 0.12);
    border-top-color: var(--tsc-text);
}

@keyframes tscSpin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Navigation
   ============================================ */
.tsc-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 0;
}

/* ============================================
   Submit Section (Step 4)
   ============================================ */
.tsc-submit-section {
    margin-top: 8px;
}

.tsc-btn--full {
    width: 100%;
    justify-content: center;
}

/* ============================================
   Right Sidebar: Overview
   ============================================ */
.tsc-sidebar {
    background: var(--tsc-bg);
    border-left: 1px solid var(--tsc-border-light);
    overflow-y: auto;
    max-height: calc(100vh - 80px);
    position: sticky;
    top: 0;
}

.tsc-overview {
    padding: 0;
}

.tsc-overview__title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--tsc-text-dark);
    margin: 0;
    padding: 16px 18px;
    background: rgba(238, 238, 238, 0.28);
    border-bottom: 1px solid var(--tsc-border-light);
}

/* Choice groups */
.tsc-overview__group {
    border-bottom: 1px solid var(--tsc-border-light);
}

.tsc-overview__group-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--tsc-text-muted);
    margin: 0;
    padding: 12px 18px 4px;
}

.tsc-overview__items {
    padding: 0 18px 12px;
}

.tsc-overview__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 13px;
}

.tsc-overview__label {
    color: var(--tsc-text-secondary);
}

.tsc-overview__value {
    font-weight: 600;
    color: var(--tsc-text-dark);
    text-align: right;
    transition: color var(--tsc-transition);
}

.tsc-overview__value--changed {
    color: var(--tsc-primary);
}

/* Pricing section */
.tsc-overview__pricing {
    padding: 14px 18px;
    background: var(--tsc-bg-page);
}

.tsc-overview__price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
    font-size: 13px;
    color: var(--tsc-text-secondary);
}

.tsc-overview__price-row--total {
    font-weight: 700;
    font-size: 16px;
    color: var(--tsc-text-dark);
    border-top: 2px solid var(--tsc-primary);
    padding-top: 10px;
    margin-top: 6px;
}

.tsc-price-display__excl,
.tsc-price-display__btw,
.tsc-price-display__incl {
    font-variant-numeric: tabular-nums;
}

/* ============================================
   Mobile Price Bar (hidden on desktop)
   ============================================ */
.tsc-mobile-price {
    display: none;
}

/* ============================================
   Notifications
   ============================================ */
.tsc-notification {
    padding: 12px 16px;
    border-radius: var(--tsc-radius);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
    animation: tscSlideDown 0.25s ease;
}

.tsc-notification--success {
    background: var(--tsc-success-bg);
    color: #0a7a08;
    border: 1px solid var(--tsc-success);
}

.tsc-notification--error {
    background: var(--tsc-error-bg);
    color: var(--tsc-error);
    border: 1px solid var(--tsc-error);
}

@keyframes tscSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Responsive: Tablet
   ============================================ */
@media (max-width: 1024px) {
    .tsc-layout {
        grid-template-columns: 1fr;
    }

    .tsc-sidebar {
        display: none;
    }

    .tsc-mobile-price {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 999;
        background: var(--tsc-bg);
        border-top: 2px solid var(--tsc-primary);
        box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.1);
    }

    .tsc-mobile-price__inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 14px 20px;
        max-width: 800px;
        margin: 0 auto;
    }

    .tsc-mobile-price__label {
        font-size: 13px;
        color: var(--tsc-text-secondary);
        text-transform: uppercase;
        font-weight: 600;
        letter-spacing: 0.3px;
    }

    .tsc-mobile-price__value {
        font-size: 20px;
        font-weight: 700;
        color: var(--tsc-text-dark);
        font-variant-numeric: tabular-nums;
    }

    .tsc-main {
        padding-bottom: 80px;
    }

    .tsc-finishing-section__options--grid {
        grid-template-columns: 1fr;
    }

    .tsc-step__images {
        grid-template-columns: 1fr;
    }

    .tsc-finishing-section__images {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Responsive: Mobile
   ============================================ */
@media (max-width: 640px) {
    .tsc-header {
        padding: 16px 18px;
    }

    .tsc-header__title {
        font-size: 17px;
    }

    .tsc-steps-nav__label {
        display: none;
    }

    .tsc-steps-nav__item {
        padding: 12px 16px;
        justify-content: center;
        flex: 1;
    }

    .tsc-steps-nav__number {
        width: 28px;
        height: 28px;
        min-width: 28px;
        font-size: 12px;
    }

    .tsc-main {
        padding: 16px 14px 80px;
    }

    .tsc-step__content {
        padding: 18px 16px;
    }

    .tsc-step__title {
        font-size: 16px;
    }

    .tsc-step__images {
        grid-template-columns: 1fr;
    }

    .tsc-finishing-section__images {
        grid-template-columns: 1fr;
    }

    .tsc-toggle-grid {
        grid-template-columns: 1fr;
    }

    .tsc-materials {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }


    .tsc-navigation {
        padding: 14px 0 0;
    }
}