:root {
    --dark-bg: #121212;
    --dark-surface: #1e1e1e;
    --dark-surface-2: #2d2d2d;
    --dark-surface-3: #252536;
    --dark-text: #e0e0e0;
    --dark-text-secondary: #a0a0a0;
    --primary: #4f46e5;
    --primary-hover: #6366f1;
    --accent: #8b5cf6;
    --success: #34d399;
    --border: #3a3a3a;
    --shadow: rgba(0, 0, 0, 0.4);
    --shadow-soft: rgba(79, 70, 229, 0.18);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
            radial-gradient(circle at top, rgba(99, 102, 241, 0.12), transparent 30%),
            linear-gradient(180deg, #16161f, var(--dark-bg) 25%);
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    color: var(--dark-text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body:has(.checkout-page-shell) {
    min-height: 100vh;
}

.navbar {
    background-color: var(--dark-surface) !important;
}

.navbar-brand, .nav-link {
    color: var(--dark-text) !important;
}

.nav-link.active {
    color: var(--primary) !important;
    font-weight: bold;
}

.navbar-toggler {
    border-color: var(--border);
}

.navbar-toggler-icon {
    filter: invert(1);
}

.hero-section {
    background-color: var(--dark-surface);
    color: var(--dark-text);
}

.section {
    padding: 4rem 0;
}

.bg-light {
    background-color: var(--dark-surface) !important;
}

.service-card {
    background-color: var(--dark-surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    color: var(--dark-text);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--shadow);
    border-color: var(--primary);
}

.service-card h3 {
    color: var(--primary);
}

.contact-info {
    background-color: var(--dark-surface-2);
    padding: 2rem;
    border-radius: 8px;
}

.form-control {
    background-color: var(--dark-surface);
    border-color: var(--border);
    color: var(--dark-text);
}

.form-control:focus {
    background-color: var(--dark-surface);
    border-color: var(--primary);
    color: var(--dark-text);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
}

.form-label {
    color: var(--dark-text);
}

.btn-primary, .btn-secondary {
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 46px;
    padding: 0.8rem 1.2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.btn-with-icon {
    display: inline-flex;
    align-items: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-color: rgba(255, 255, 255, 0.08);
    color: white;
    box-shadow: 0 16px 30px var(--shadow-soft);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border);
    color: var(--dark-text);
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.16);
    transform: translateY(-1px);
}

footer.bg-dark {
    background-color: var(--dark-surface) !important;
    border-top: 1px solid var(--border);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--dark-text);
    margin: 0;
}

.bg-secondary {
    background-color: var(--dark-surface-2) !important;
    border: 1px solid var(--border);
}

p {
    color: var(--dark-text-secondary);
    margin: 0;
}

strong {
    color: var(--dark-text);
}

ul {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--dark-text-secondary);
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

.checkout-page {
    display: grid;
    gap: 1.5rem;
}

.checkout-page-shell {
    min-height: 100vh;
    align-content: start;
}

.checkout-page h1 {
    margin-bottom: 0.35rem;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.checkout-layout-wide {
    grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.9fr);
    align-items: start;
}

.checkout-card {
    background: var(--dark-surface);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 1.4rem;
    box-shadow: 0 12px 32px var(--shadow);
}

.glass-panel {
    background: linear-gradient(180deg, rgba(40, 40, 56, 0.92), rgba(27, 27, 38, 0.96));
    backdrop-filter: blur(16px);
}

.checkout-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem;
}

.success-hero {
    border-color: rgba(52, 211, 153, 0.3);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: flex-end;
}

.hero-actions form {
    margin: 0;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    color: #c4b5fd;
    margin-bottom: 0.45rem;
}

.checkout-progress {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1rem 1.2rem;
}

.progress-step {
    display: flex;
    gap: 0.85rem;
    align-items: center;
}

.progress-step p {
    font-size: 0.95rem;
}

.progress-index {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--dark-text);
    font-weight: 700;
}

.progress-step.done .progress-index,
.progress-step.active .progress-index {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-color: transparent;
    color: white;
}

.progress-step-composition .progress-index {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border);
    color: var(--dark-text);
}

.progress-divider {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, rgba(255,255,255,0.18), rgba(255,255,255,0.04));
}

.checkout-section + .checkout-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.section-heading {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
}

.section-heading.compact {
    align-items: center;
}

.section-heading-with-actions {
    align-items: flex-start;
}

.section-heading-with-actions .btn-secondary {
    margin-left: auto;
}

.stack-md {
    display: grid;
    gap: 1rem;
}

.grid {
    display: grid;
    gap: 1rem;
}

.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.delivery-planning-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.delivery-planning-grid > .measurement-field {
    grid-column: span 2;
}

.delivery-planning-grid > .delivery-street-field {
    grid-column: span 2;
}

.delivery-planning-grid > .delivery-city-field {
    grid-column: span 2;
}

.delivery-planning-grid > .site-contact-field,
.delivery-planning-grid > .site-contact-phone-field {
    grid-column: span 2;
}

.delivery-planning-grid > .delivery-row-start {
    grid-column-start: 1;
}

.billing-address-grid,
.billing-contact-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.billing-address-grid > .billing-contact-field,
.billing-address-grid > .billing-contact-phone-field,
.billing-address-grid > .billing-street-field,
.billing-address-grid > .billing-city-field {
    grid-column: span 2;
}

.billing-address-grid > .billing-row-start {
    grid-column-start: 1;
}

.billing-address-grid > .billing-addition-field {
    grid-column: span 1;
}

.billing-contact-grid > label {
    grid-column: span 2;
}

.full-width {
    grid-column: 1 / -1;
}

.inline-field-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, auto);
    gap: 1rem;
    align-items: stretch;
}

.inline-field-row > * {
    height: 100%;
}

.inline-checkbox {
    min-height: 100%;
    justify-content: center;
}

.compact-composition-row {
    grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
    align-items: end;
}

.compact-toggle-card {
    align-items: center;
}

label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    color: var(--dark-text);
    font-weight: 600;
}

.compact-field {
    gap: 0.3rem;
}

input, textarea, select {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    color: var(--dark-text);
    border-radius: 12px;
    padding: 0.72rem 0.9rem;
    font: inherit;
}

input::placeholder, textarea::placeholder {
    color: #8e8ea3;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.14);
}

textarea {
    resize: vertical;
    min-height: 110px;
}

.helper, .muted {
    color: var(--dark-text-secondary);
}

.field-error {
    color: #fda4af;
}

.is-hidden {
    display: none !important;
}

.checkbox-row {
    flex-direction: row;
    align-items: flex-start;
    margin: 0.25rem 0 0;
    font-weight: 500;
}

.checkbox-row input {
    width: auto;
    margin-top: 0.25rem;
}

.checkbox-copy {
    display: grid;
    gap: 0.2rem;
}

.checkbox-card {
    gap: 0.8rem;
}

.reveal-panel,
.panel-soft {
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 1rem;
}

.reveal-panel {
    margin-top: 0.5rem;
}

.callout {
    border-radius: 16px;
    padding: 1rem 1.1rem;
}

.callout-soft {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.18), rgba(139, 92, 246, 0.08));
    border: 1px solid rgba(139, 92, 246, 0.18);
}

.info-card h3,
.summary-block h3 {
    margin-bottom: 0.5rem;
}

.check-list {
    display: grid;
    gap: 0.35rem;
}

.checklist-block {
    display: grid;
    gap: 0.6rem;
}

.checklist-item {
    display: grid;
    gap: 0.35rem;
    padding: 0.65rem 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.025);
}

.checklist-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
    text-align: left;
}

.checklist-caret {
    color: var(--dark-text-secondary);
    font-size: 1rem;
}

.checklist-item:not(.is-expanded) .checklist-details,
.checklist-item:not(.is-expanded) .checklist-form-fields {
    display: none;
}

.checklist-item.is-complete {
    border-color: rgba(196, 181, 253, 0.18);
}

.checklist-row {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.checklist-icon {
    width: 1rem;
    text-align: center;
    color: #c4b5fd;
    flex: 0 0 1rem;
}

.checklist-status {
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--dark-text-secondary);
    font-weight: 700;
}

.checklist-item.is-complete .checklist-status {
    background: rgba(196, 181, 253, 0.14);
    border-color: rgba(196, 181, 253, 0.22);
    color: #ddd6fe;
}

.checklist-form-fields {
    display: grid;
    gap: 0.75rem;
    padding-left: 2.4rem;
}

.checklist-details {
    display: grid;
    gap: 0.4rem;
    padding-left: 2.4rem;
}

.checklist-details p {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.checklist-details p > span:last-child {
    text-align: right;
}

.checkout-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: flex-end;
    margin-top: 1rem;
}

.checkout-actions-flat {
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
}

.checkout-actions-split {
    justify-content: space-between;
}

.checkout-actions-left {
    justify-content: flex-start;
}

.checkout-actions-main {
    justify-content: flex-end;
}

.inline-actions {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.helper-below-button {
    display: block;
    width: 100%;
    text-align: right;
}

.text-nowrap {
    white-space: nowrap;
}

.checkout-side-column {
    display: grid;
    gap: 1rem;
    align-content: start;
    position: sticky;
    top: 1rem;
}

.checkout-side-column > form,
.checkout-side-column > a,
.checkout-side-column > button,
.checkout-side-column > .stack-md {
    width: 100%;
}

.checkout-side-column > form .btn-primary,
.checkout-side-column > form .btn-secondary,
.checkout-side-column > a.btn-primary,
.checkout-side-column > a.btn-secondary,
.checkout-side-column > button.btn-primary,
.checkout-side-column > button.btn-secondary,
.checkout-side-column > .stack-md > .btn-primary,
.checkout-side-column > .stack-md > .btn-secondary {
    width: 100%;
}

.summary-card {
    position: static;
}

.summary-block-totals {
    margin-top: auto;
}

.order-summary-main {
    gap: 1.25rem;
}

.order-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.order-summary-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 1rem;
    box-shadow: none;
    align-self: start;
}

.order-summary-panel-wide {
    grid-column: span 4;
}

.order-summary-panel-half {
    grid-column: span 2;
}

.confirmation-grid > .order-summary-panel-half {
    grid-column: span 2;
}

.summary-block {
    display: grid;
    gap: 0.55rem;
    padding-top: 0.1rem;
}

.summary-block + .summary-block {
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.summary-block p {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.summary-block-icons p,
.summary-block-icons .summary-address-inline {
    align-items: flex-start;
}

.summary-label-with-icon {
    display: inline-flex;
    align-items: flex-start;
    gap: 0.55rem;
}

.summary-icon {
    width: 1.1rem;
    text-align: center;
    color: #c4b5fd;
    flex: 0 0 1.1rem;
}

.summary-block p > span {
    text-align: right;
}

.summary-address-inline {
    align-items: flex-start;
}

.address-top-actions {
    align-items: flex-start;
}

.address-top-actions .btn-secondary {
    margin-left: auto;
}

.summary-address-block {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    color: var(--dark-text-secondary);
}

.summary-address-block > strong {
    color: var(--dark-text);
}

.address-inline-value {
    display: grid;
    gap: 0.2rem;
    text-align: right;
}


.address-review {
    display: grid;
    gap: 0.35rem;
    color: var(--dark-text-secondary);
}

.address-review > div {
    display: grid;
    gap: 0.2rem;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 1.05rem;
}

.line-items {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 0.75rem;
}

.line-items li {
    display: grid;
    gap: 0.3rem;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.03);
}

.line-item-head,
.line-item-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.line-item-meta {
    color: var(--dark-text-secondary);
    font-size: 0.92rem;
}

.line-item-head strong:last-child,
.line-item-meta span:last-child {
    text-align: right;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--dark-text);
    font-size: 0.85rem;
}

.title-chip {
    background: rgba(79, 70, 229, 0.18);
    border-color: rgba(139, 92, 246, 0.28);
}

.status-pill-success {
    background: rgba(52, 211, 153, 0.16);
    border-color: rgba(52, 211, 153, 0.45);
    color: #b7f7dd;
}

.status-pill-danger {
    background: rgba(248, 113, 113, 0.16);
    border-color: rgba(248, 113, 113, 0.45);
    color: #fecaca;
}

.status-pill-pending {
    background: rgba(250, 204, 21, 0.16);
    border-color: rgba(250, 204, 21, 0.45);
    color: #fde68a;
}

.status-pill-warning {
    background: rgba(251, 146, 60, 0.16);
    border-color: rgba(251, 146, 60, 0.45);
    color: #fdba74;
}

.status-pill-neutral {
    background: rgba(148, 163, 184, 0.16);
    border-color: rgba(148, 163, 184, 0.45);
    color: #cbd5e1;
}

@media (max-width: 900px) {
    .checkout-layout,
    .checkout-layout-wide,
    .two-col,
    .delivery-planning-grid,
    .billing-address-grid,
    .billing-contact-grid,
    .compact-composition-row,
    .order-summary-grid {
        grid-template-columns: 1fr;
    }

    .delivery-planning-grid > .measurement-field {
        grid-column: auto;
    }

    .delivery-planning-grid > .delivery-street-field,
    .delivery-planning-grid > .delivery-city-field,
    .delivery-planning-grid > .site-contact-field,
    .delivery-planning-grid > .site-contact-phone-field,
    .billing-address-grid > label,
    .billing-contact-grid > label,
    .order-summary-panel-wide {
        grid-column: auto;
    }

    .checkout-hero,
    .section-heading,
    .checkout-actions,
    .checkout-actions-split {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions,
    .inline-actions {
        justify-content: stretch;
    }

    .checkout-side-column {
        align-content: stretch;
        position: static;
    }

    .summary-card {
        position: static;
    }

    .progress-divider {
        display: none;
    }

    .checkout-progress {
        flex-direction: column;
        align-items: flex-start;
    }
}