:root {
    --itb-blue: #1B4F8A;
    --itb-amber: #F0A500;
    --itb-linen: #F7F6F2;
    --itb-navy: #0D1B2A;
    --itb-ink: #1A1A2E;
    --itb-slate: #5A6475;
    --itb-white: #FFFFFF;
    --itb-success: #1E8A5E;
    --itb-warning: #D97706;
    --itb-error: #C0392B;
    --itb-font-heading: 'Plus Jakarta Sans', 'Segoe UI', Helvetica, Arial, sans-serif;
    --itb-font-body: 'Lora', Georgia, 'Times New Roman', serif;
    --itb-radius-md: 8px;
    --itb-radius-lg: 12px;
    --itb-radius-xl: 16px;
    --itb-shadow-sm: 0 2px 6px rgba(13, 27, 42, 0.08);
    --itb-shadow-md: 0 4px 16px rgba(13, 27, 42, 0.10);
    --itb-shadow-lg: 0 12px 36px rgba(13, 27, 42, 0.14);
    --itb-border: rgba(90, 100, 117, 0.18);
    --itb-focus: 0 0 0 3px rgba(27, 79, 138, 0.40);
}

.itb-preview-shell,
.itb-customer-shell {
    min-height: 100vh;
    background: var(--itb-linen);
    color: var(--itb-ink);
    font-family: var(--itb-font-heading);
}

.itb-preview-shell p,
.itb-customer-shell p {
    color: var(--itb-slate);
}

.itb-public-nav,
.itb-customer-nav {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px clamp(18px, 4vw, 56px);
    background: var(--itb-linen);
    border-bottom: 1px solid var(--itb-border);
}

.itb-logo {
    height: 44px;
    width: auto;
    display: block;
}

.itb-logo-reversed {
    height: 46px;
    width: auto;
    display: block;
}

.itb-nav-links {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 0.95rem;
    font-weight: 700;
}

.itb-nav-links a,
.itb-customer-links a {
    color: var(--itb-blue);
    text-decoration: none;
}

.itb-public-main,
.itb-customer-main {
    min-height: calc(100vh - 72px);
}

.itb-coming-soon-shell {
    min-height: 100vh;
    background: var(--itb-linen);
    color: var(--itb-ink);
    font-family: var(--itb-font-heading);
}

.itb-coming-soon {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: clamp(42px, 8vw, 96px) clamp(18px, 5vw, 64px);
    background: linear-gradient(90deg, var(--itb-linen) 0%, var(--itb-white) 100%);
}

.itb-coming-soon-content {
    width: 100%;
    max-width: 820px;
}

.itb-coming-soon-content .itb-logo {
    margin-bottom: clamp(34px, 6vw, 56px);
}

.itb-coming-soon-note {
    max-width: 640px;
    margin: 18px 0 0;
    color: var(--itb-slate);
    font-family: var(--itb-font-body);
    font-size: 1.03rem;
    line-height: 1.7;
}

.itb-section {
    padding: clamp(48px, 7vw, 92px) clamp(18px, 4vw, 56px);
}

.itb-section-white {
    background: var(--itb-white);
}

.itb-section-navy {
    background: var(--itb-navy);
    color: var(--itb-white);
}

.itb-inner {
    max-width: 1120px;
    margin: 0 auto;
}

.itb-hero {
    min-height: calc(100vh - 72px);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
    align-items: center;
    gap: clamp(30px, 6vw, 72px);
    padding: clamp(42px, 6vw, 76px) clamp(18px, 4vw, 56px);
    background: linear-gradient(90deg, var(--itb-linen) 0%, #fff 100%);
}

.itb-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--itb-blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.itb-h1,
.itb-h2,
.itb-h3 {
    color: var(--itb-ink);
    font-family: var(--itb-font-heading);
    letter-spacing: 0;
    margin: 0;
}

.itb-h1 {
    max-width: 760px;
    font-size: clamp(2.4rem, 5vw, 4.9rem);
    font-weight: 800;
    line-height: 1.03;
}

.itb-h2 {
    font-size: clamp(1.9rem, 3vw, 2.7rem);
    font-weight: 800;
    line-height: 1.12;
}

.itb-h3 {
    font-size: 1.15rem;
    font-weight: 800;
    line-height: 1.25;
}

.itb-lead {
    max-width: 680px;
    margin: 22px 0 0;
    color: var(--itb-slate);
    font-family: var(--itb-font-body);
    font-size: clamp(1.05rem, 1.5vw, 1.28rem);
    line-height: 1.7;
}

.itb-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    margin-top: 30px;
}

.itb-btn {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: var(--itb-radius-md);
    border: 0;
    padding: 0 22px;
    color: var(--itb-white);
    background: var(--itb-blue);
    box-shadow: 0 2px 8px rgba(27, 79, 138, 0.30);
    font-family: var(--itb-font-heading);
    font-weight: 800;
    text-decoration: none;
    transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.itb-btn:hover {
    color: var(--itb-white);
    background: #15407A;
    transform: translateY(-1px);
}

.itb-btn:focus-visible,
.itb-card-link:focus-visible,
.itb-input:focus,
.itb-textarea:focus,
.itb-link:focus-visible {
    outline: none;
    box-shadow: var(--itb-focus);
}

.itb-btn-amber {
    color: var(--itb-navy);
    background: var(--itb-amber);
    box-shadow: 0 2px 8px rgba(240, 165, 0, 0.30);
}

.itb-btn-amber:hover {
    color: var(--itb-navy);
    background: #D99400;
}

.itb-btn-secondary {
    color: var(--itb-blue);
    background: transparent;
    border: 2px solid var(--itb-blue);
    box-shadow: none;
}

.itb-btn-secondary:hover {
    color: var(--itb-blue);
    background: rgba(27, 79, 138, 0.06);
}

.itb-bid {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--itb-navy);
    background: var(--itb-white);
    font-size: 0.63rem;
    font-weight: 900;
}

.itb-trust-note {
    margin-top: 14px;
    color: var(--itb-slate);
    font-size: 0.9rem;
    font-weight: 700;
}

.itb-hero-panel {
    background: var(--itb-navy);
    color: var(--itb-white);
    border-radius: var(--itb-radius-xl);
    box-shadow: var(--itb-shadow-lg);
    padding: clamp(26px, 4vw, 42px);
}

.itb-price-number {
    color: var(--itb-amber);
    font-size: clamp(3.2rem, 6vw, 5.4rem);
    font-weight: 800;
    line-height: 0.95;
}

.itb-price-unit {
    color: rgba(255,255,255,0.72);
    font-weight: 700;
}

.itb-check-list {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 24px 0 0;
    list-style: none;
}

.itb-check-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: inherit;
    font-weight: 700;
}

.itb-check-list li::before {
    content: "";
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    margin-top: 2px;
    border-radius: 50%;
    background: var(--itb-amber);
}

.itb-stat-grid,
.itb-card-grid,
.itb-step-grid,
.itb-feature-grid {
    display: grid;
    gap: 18px;
}

.itb-stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.itb-card-grid,
.itb-step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.itb-card,
.itb-stat-card,
.itb-step-card,
.itb-feature-card,
.itb-form-card,
.itb-issue-card {
    background: var(--itb-white);
    border: 1px solid var(--itb-border);
    border-radius: var(--itb-radius-lg);
    box-shadow: var(--itb-shadow-md);
    padding: 24px;
}

.itb-stat-num {
    color: var(--itb-blue);
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.itb-card p,
.itb-step-card p,
.itb-feature-card p {
    font-family: var(--itb-font-body);
    line-height: 1.65;
}

.itb-step-kicker {
    color: var(--itb-blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.itb-final-cta {
    text-align: center;
}

.itb-final-cta .itb-h2,
.itb-section-navy .itb-h2 {
    color: var(--itb-white);
}

.itb-section-navy .itb-lead {
    color: rgba(255,255,255,0.68);
    margin-left: auto;
    margin-right: auto;
}

.itb-staff-entry {
    display: flex;
    justify-content: center;
    padding: 18px clamp(18px, 4vw, 56px) 24px;
    background: var(--itb-navy);
}

.itb-staff-entry-link {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.28);
    border-radius: var(--itb-radius-md);
    padding: 0 12px;
    color: rgba(255,255,255,0.72);
    font-size: 0.78rem;
    font-weight: 800;
    text-decoration: none;
}

.itb-staff-entry-link:hover,
.itb-staff-entry-link:focus-visible {
    color: var(--itb-white);
    border-color: rgba(255,255,255,0.56);
}

.itb-pricing-card {
    max-width: 720px;
    margin: 34px auto 0;
    padding: clamp(28px, 4vw, 44px);
    text-align: center;
}

.itb-customer-nav {
    background: var(--itb-navy);
    border-bottom: 0;
}

.itb-customer-links {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.itb-customer-links a {
    color: rgba(255,255,255,0.78);
    font-weight: 800;
}

.itb-customer-links a:hover {
    color: var(--itb-white);
}

.itb-customer-links .itb-btn {
    white-space: nowrap;
}

.itb-user-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 220px;
    color: var(--itb-white);
    font-weight: 800;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.itb-customer-page {
    max-width: 1120px;
    margin: 0 auto;
    padding: clamp(28px, 5vw, 56px) clamp(18px, 4vw, 36px);
}

.itb-page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 28px;
}

.itb-page-header p {
    max-width: 680px;
    margin-top: 10px;
    font-family: var(--itb-font-body);
    font-size: 1.05rem;
    line-height: 1.65;
}

.itb-page-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.itb-customer-hero-title {
    font-size: clamp(2rem, 4vw, 3.6rem);
}

.itb-card-link {
    display: block;
    min-height: 100%;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.itb-card-link:hover {
    color: inherit;
    transform: translateY(-2px);
    box-shadow: var(--itb-shadow-lg);
}

.itb-icon-box {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    color: var(--itb-blue);
    background: rgba(27, 79, 138, 0.10);
    font-weight: 900;
    margin-bottom: 18px;
}

.itb-action-card {
    min-height: 210px;
}

.itb-empty-state {
    display: grid;
    gap: 14px;
    max-width: 720px;
}

.itb-empty-state p,
.itb-form-note,
.itb-chat-intro {
    margin: 0;
    font-family: var(--itb-font-body);
    line-height: 1.65;
}

.itb-alert {
    border-radius: var(--itb-radius-lg);
    padding: 16px 18px;
    margin-bottom: 18px;
    border: 1px solid var(--itb-border);
    background: var(--itb-white);
    color: var(--itb-ink);
}

.itb-alert-success {
    border-color: rgba(30, 138, 94, 0.25);
    background: rgba(30, 138, 94, 0.08);
}

.itb-alert-info {
    border-color: rgba(27, 79, 138, 0.22);
    background: rgba(27, 79, 138, 0.07);
}

.itb-alert-danger {
    border-color: rgba(192, 57, 43, 0.25);
    background: rgba(192, 57, 43, 0.08);
}

.itb-field {
    margin-bottom: 18px;
}

.itb-label {
    display: block;
    margin-bottom: 8px;
    color: var(--itb-ink);
    font-size: 0.9rem;
    font-weight: 800;
}

.itb-input,
.itb-textarea {
    width: 100%;
    min-height: 48px;
    border: 1.5px solid rgba(90, 100, 117, 0.35);
    border-radius: var(--itb-radius-md);
    padding: 12px 14px;
    color: var(--itb-ink);
    background: var(--itb-white);
    font-family: var(--itb-font-heading);
}

.itb-textarea {
    min-height: 190px;
    line-height: 1.6;
}

.itb-login-wrap {
    min-height: calc(100vh - 72px);
    display: grid;
    place-items: center;
    padding: 36px 18px;
}

.itb-login-card {
    width: min(100%, 560px);
    text-align: center;
}

.itb-staff-login-shell {
    min-height: calc(100vh - 4rem);
    display: grid;
    place-items: center;
    padding: 28px 0;
}

.itb-staff-login-card {
    width: min(100%, 520px);
    text-align: left;
}

.itb-staff-login-card .itb-logo {
    margin-bottom: 22px;
}

.itb-staff-login-card p {
    margin: 12px 0 22px;
    font-family: var(--itb-font-body);
    line-height: 1.65;
}

.itb-staff-login-form {
    margin-top: 22px;
}

.itb-staff-login-submit {
    width: 100%;
}

.itb-staff-login-home {
    display: inline-flex;
    margin-top: 18px;
    color: var(--itb-blue);
    font-weight: 800;
    text-decoration: none;
}

.itb-user-list {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.itb-user-btn {
    width: 100%;
    min-height: 58px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--itb-border);
    border-radius: var(--itb-radius-lg);
    background: var(--itb-white);
    color: var(--itb-ink);
    padding: 10px 14px;
    font-weight: 800;
    text-align: left;
}

.itb-user-avatar {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--itb-white);
    background: var(--itb-blue);
}

.itb-status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 0.78rem;
    font-weight: 800;
}

.itb-status::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.itb-status-new,
.itb-status-classified {
    color: var(--itb-blue);
    background: rgba(27, 79, 138, 0.10);
}

.itb-status-progress {
    color: var(--itb-warning);
    background: rgba(217, 119, 6, 0.12);
}

.itb-status-resolved {
    color: var(--itb-success);
    background: rgba(30, 138, 94, 0.12);
}

.itb-status-closed {
    color: var(--itb-slate);
    background: rgba(90, 100, 117, 0.12);
}

.itb-table-card {
    padding: 0;
    overflow: hidden;
}

.itb-table {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
}

.itb-table th,
.itb-table td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--itb-border);
    vertical-align: top;
}

.itb-table th {
    color: var(--itb-blue);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.itb-table tbody tr:hover {
    background: rgba(27, 79, 138, 0.05);
}

.itb-row-link {
    color: var(--itb-ink);
    font-weight: 800;
    text-decoration: none;
}

.itb-row-link:hover,
.itb-row-link:focus-visible {
    color: var(--itb-blue);
    text-decoration: underline;
}

.itb-mobile-card-list {
    display: grid;
    gap: 12px;
}

.itb-issue-card {
    display: block;
}

.itb-issue-card-head,
.itb-issue-card-meta,
.itb-detail-grid {
    display: grid;
    gap: 12px;
}

.itb-issue-card-head,
.itb-issue-card-meta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
}

.itb-issue-card-date,
.itb-issue-card-count,
.itb-helper-text {
    color: var(--itb-slate);
    font-size: 0.88rem;
}

.itb-issue-card-title {
    margin: 14px 0 8px;
    color: var(--itb-ink);
    font-family: var(--itb-font-heading);
    font-weight: 800;
    line-height: 1.35;
}

.itb-detail-card {
    margin-bottom: 24px;
}

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

.itb-divider {
    margin: 22px 0;
    border: 0;
    border-top: 1px solid var(--itb-border);
}

.itb-description-body {
    white-space: pre-wrap;
    color: var(--itb-ink);
    font-family: var(--itb-font-body);
    line-height: 1.7;
}

.itb-timeline-title {
    margin-bottom: 16px;
}

.itb-message-meta {
    margin-bottom: 6px;
    color: var(--itb-slate);
    font-size: 0.85rem;
    font-weight: 800;
}

.itb-message-meta span {
    font-weight: 600;
}

.itb-chat-bubble {
    max-width: 720px;
    border-radius: var(--itb-radius-lg);
    padding: 14px 16px;
    white-space: pre-wrap;
    line-height: 1.6;
}

.itb-message-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 16px;
}

.itb-message-row-customer {
    align-items: flex-end;
}

.itb-chat-customer {
    color: var(--itb-white);
    background: var(--itb-blue);
}

.itb-chat-staff {
    color: var(--itb-ink);
    background: var(--itb-white);
    border: 1px solid var(--itb-border);
}

.itb-mobile-only {
    display: none;
}

@media (max-width: 820px) {
    .itb-hero,
    .itb-stat-grid,
    .itb-card-grid,
    .itb-step-grid,
    .itb-feature-grid {
        grid-template-columns: 1fr;
    }

    .itb-hero {
        min-height: auto;
    }

    .itb-public-nav,
    .itb-customer-nav,
    .itb-page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .itb-customer-links {
        flex-wrap: wrap;
        gap: 10px;
    }

    .itb-desktop-only {
        display: none;
    }

    .itb-mobile-only {
        display: block;
    }

    .itb-customer-links .itb-btn {
        min-height: 42px;
    }

    .itb-user-pill {
        order: -1;
        width: 100%;
        max-width: 100%;
    }

    .itb-page-actions,
    .itb-page-actions .itb-btn {
        width: 100%;
    }

    .itb-detail-grid {
        grid-template-columns: 1fr;
    }

    .itb-issue-card-head,
    .itb-issue-card-meta {
        grid-template-columns: 1fr;
    }

    .itb-message-row-customer {
        align-items: stretch;
    }
}