:root {
    --app-bg: #E5F9F9;
    --app-panel: #ffffff;
    --app-text: #091F4E;
    --app-muted: #647084;
    --app-border: #c9e7e8;
    --app-primary: #091F4E;
    --app-accent: #0EC7CB;
    --app-green: #087A4A;
    --app-soft: #E5F9F9;
}

* {
    box-sizing: border-box;
}

html,
body {
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    color: var(--app-text);
    background: linear-gradient(180deg, #ffffff 0%, #f7fcfc 48%, var(--app-bg) 100%);
    font-family: "Segoe UI", Tahoma, sans-serif;
}

.app-navbar {
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid var(--app-border);
    backdrop-filter: blur(12px);
}

.brand-mark,
.auth-icon,
.bot-dot {
    display: inline-grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.brand-mark {
    color: #fff;
    background: var(--app-primary);
}

.brand-logo-public {
    display: block;
    width: auto;
    max-width: 156px;
    max-height: 44px;
    object-fit: contain;
}

.btn-primary {
    --bs-btn-bg: var(--app-primary);
    --bs-btn-border-color: var(--app-primary);
    --bs-btn-hover-bg: #12356f;
    --bs-btn-hover-border-color: #12356f;
    --bs-btn-focus-shadow-rgb: 14, 199, 203;
}

.btn-outline-primary {
    --bs-btn-color: var(--app-primary);
    --bs-btn-border-color: #9bdfe1;
    --bs-btn-hover-color: var(--app-primary);
    --bs-btn-hover-bg: var(--app-soft);
    --bs-btn-hover-border-color: var(--app-accent);
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--app-primary);
    --bs-btn-active-border-color: var(--app-primary);
    --bs-btn-focus-shadow-rgb: 14, 199, 203;
}

.link-primary,
a {
    color: var(--app-primary);
}

.link-primary:hover,
a:hover {
    color: #0A8E96;
}

.portal-hero {
    padding: 64px 0 48px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    margin-bottom: 16px;
    color: var(--app-primary);
    font-weight: 700;
}

.portal-hero h1 {
    max-width: 620px;
    margin-bottom: 16px;
    font-size: clamp(2.2rem, 6vw, 4.8rem);
    line-height: 1;
    letter-spacing: 0;
}

.hero-copy {
    max-width: 560px;
    margin-bottom: 24px;
    color: var(--app-muted);
    font-size: 1.12rem;
}

.landing-hero {
    padding: 56px 0 42px;
}

.hero-shell {
    display: grid;
    gap: 34px;
    min-width: 0;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    min-width: 0;
}

.landing-hero h1 {
    max-width: 860px;
    margin: 0 auto 18px;
    font-size: clamp(2.25rem, 6vw, 4.6rem);
    line-height: 1;
    letter-spacing: 0;
}

.landing-hero .hero-copy {
    max-width: 720px;
    margin: 0 auto 24px;
}

.hero-actions,
.trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
}

.trust-row {
    margin-top: 22px;
}

.trust-row span,
.mini-label,
.use-case-pill,
.safety-list span {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    border: 1px solid #afe8e9;
    border-radius: 999px;
    background: rgba(229, 249, 249, 0.8);
    color: var(--app-primary);
    font-weight: 700;
}

.trust-row span {
    min-height: 38px;
    padding: 8px 12px;
}

.trust-row i,
.use-case-pill i,
.safety-list i {
    color: #0A8E96;
}

.assistant-showcase {
    max-width: 1040px;
    margin: 0 auto;
    min-width: 0;
}

.home-visual-card {
    overflow: hidden;
    margin: 0;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 22px 54px rgba(9, 31, 78, 0.11);
}

.home-visual-card img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.hero-visual-card {
    margin-bottom: 18px;
}

.section-visual-card {
    max-width: 980px;
    margin: 0 auto 24px;
}

.showcase-browser {
    overflow: hidden;
    max-width: 100%;
    min-width: 0;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 24px 60px rgba(9, 31, 78, 0.12);
}

.showcase-browser .preview-top {
    margin: 0;
    padding: 16px 18px;
    border-bottom: 1px solid var(--app-border);
    background: #f8fcfc;
}

.showcase-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
    gap: 20px;
    padding: 24px;
    align-items: stretch;
    min-width: 0;
}

.showcase-panel {
    min-height: 320px;
    min-width: 0;
    padding: 26px;
    border-radius: 8px;
    background:
        linear-gradient(135deg, rgba(9, 31, 78, 0.96), rgba(10, 142, 150, 0.94)),
        var(--app-primary);
    color: #ffffff;
}

.mini-label {
    margin-bottom: 18px;
    padding: 7px 11px;
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.26);
    color: #ffffff;
    font-size: 0.8rem;
}

.showcase-panel h2 {
    max-width: 420px;
    margin-bottom: 20px;
    font-size: clamp(1.8rem, 4vw, 3.1rem);
    line-height: 1.05;
}

.knowledge-list {
    display: grid;
    gap: 12px;
    max-width: 460px;
}

.knowledge-list span {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    font-weight: 700;
}

.knowledge-list i {
    color: var(--app-accent);
}

.widget-preview {
    display: flex;
    min-height: 320px;
    min-width: 0;
    flex-direction: column;
    gap: 12px;
    padding: 18px;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #f5fbfb;
}

.widget-head {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border-radius: 8px;
    background: var(--app-primary);
    color: #ffffff;
}

.widget-head small {
    display: block;
    color: #bff2f3;
}

.message {
    max-width: 88%;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.95rem;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.message.bot {
    align-self: flex-start;
    background: #ffffff;
    color: var(--app-text);
    box-shadow: 0 8px 20px rgba(9, 31, 78, 0.06);
}

.message.user {
    align-self: flex-end;
    background: var(--app-accent);
    color: #052a37;
    font-weight: 700;
}

.section-shell {
    padding: 62px 0;
}

.section-soft {
    background: rgba(229, 249, 249, 0.58);
}

.section-heading {
    max-width: 740px;
    margin: 0 auto 28px;
    text-align: center;
}

.section-heading h2,
.value-band h2,
.final-cta h2 {
    margin-bottom: 12px;
    font-size: clamp(1.8rem, 4vw, 3rem);
    line-height: 1.08;
    letter-spacing: 0;
}

.section-heading p,
.feature-card p,
.flow-step p,
.audience-card p,
.value-band p,
.final-cta p {
    color: var(--app-muted);
}

.flow-steps,
.feature-grid,
.audience-grid {
    display: grid;
    gap: 16px;
}

.flow-steps {
    grid-template-columns: repeat(5, 1fr);
}

.flow-step,
.feature-card,
.audience-card {
    position: relative;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 12px 32px rgba(9, 31, 78, 0.06);
}

.flow-step {
    display: grid;
    gap: 10px;
    min-height: 220px;
    padding: 20px;
}

.step-number {
    display: inline-grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--app-soft);
    color: var(--app-primary);
    font-weight: 800;
}

.flow-step > i,
.feature-icon,
.audience-card > i {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: #ddfbfb;
    color: #0A8E96;
    font-size: 1.15rem;
}

.flow-step h3,
.feature-card h3,
.audience-card h3 {
    margin: 0;
    font-size: 1.08rem;
}

.flow-step p,
.feature-card p,
.audience-card p {
    margin: 0;
}

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

.feature-card {
    display: grid;
    gap: 12px;
    min-height: 230px;
    padding: 22px;
}

.feature-card:hover,
.audience-card:hover,
.flow-step:hover {
    border-color: #8ddfe1;
    box-shadow: 0 16px 34px rgba(9, 31, 78, 0.09);
}

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

.audience-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
}

.use-case-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    gap: 32px;
    align-items: center;
    min-width: 0;
}

.use-case-grid,
.safety-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.use-case-pill,
.safety-list span {
    min-height: 42px;
    padding: 10px 13px;
}

.value-band {
    padding: 54px 0;
}

.value-band-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.78fr);
    gap: 28px;
    align-items: center;
    min-width: 0;
    padding: 28px;
    border: 1px solid #92e2e4;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 18px 44px rgba(9, 31, 78, 0.08);
}

.safety-list {
    justify-content: flex-start;
}

.final-cta {
    padding: 38px 0 72px;
}

.final-cta-inner {
    max-width: 860px;
    margin: 0 auto;
    padding: 34px;
    border: 1px solid #9bdfe1;
    border-radius: 8px;
    background: var(--app-soft);
    text-align: center;
}

.portal-preview {
    padding: 18px;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: var(--app-panel);
    box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
}

.preview-top {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.preview-top span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cbd5e1;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.preview-card,
.action-card {
    display: grid;
    gap: 8px;
    min-height: 128px;
    padding: 18px;
    color: var(--app-text);
    text-decoration: none;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #fbfdff;
}

.preview-card i,
.action-card i {
    color: var(--app-accent);
    font-size: 1.4rem;
}

.preview-card small,
.action-card small {
    color: var(--app-muted);
}

.preview-card.active {
    color: #fff;
    background: linear-gradient(135deg, var(--app-primary), #0A8E96);
}

.preview-card.active i,
.preview-card.active small {
    color: #fff;
}

.chat-row {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-top: 18px;
    padding: 16px;
    border-radius: 8px;
    background: var(--app-soft);
}

.chat-row p {
    margin: 0;
    color: var(--app-muted);
}

.bot-dot {
    flex: 0 0 auto;
    color: #fff;
    background: var(--app-accent);
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 36px;
}

.action-card {
    min-height: 132px;
    transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.action-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}

.auth-shell {
    padding: 56px 0;
}

.auth-card {
    max-width: 520px;
    margin: 0 auto;
    padding: 28px;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: var(--app-panel);
    box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
}

.back-link {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 24px;
    color: var(--app-muted);
    text-decoration: none;
}

.auth-heading {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    margin-bottom: 24px;
}

.auth-heading h1 {
    margin: 0 0 6px;
    font-size: 2rem;
}

.auth-heading p,
.auth-note {
    color: var(--app-muted);
}

.auth-note {
    display: flex;
    gap: 10px;
    margin-top: 18px;
    padding: 12px;
    border-radius: 8px;
    background: #f8fafc;
}

@media (max-width: 1100px) {
    .flow-steps,
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .showcase-grid,
    .use-case-layout,
    .value-band-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .portal-hero {
        padding-top: 40px;
    }

    .preview-grid,
    .quick-actions,
    .showcase-grid,
    .flow-steps,
    .feature-grid,
    .audience-grid,
    .use-case-layout,
    .value-band-inner {
        grid-template-columns: 1fr;
    }

    .landing-hero {
        padding-top: 36px;
    }

    .hero-content {
        text-align: left;
    }

    .landing-hero h1,
    .landing-hero .hero-copy {
        margin-right: 0;
        margin-left: 0;
    }

    .hero-actions,
    .trust-row {
        justify-content: flex-start;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .showcase-grid,
    .value-band-inner,
    .final-cta-inner {
        padding: 18px;
    }

    .showcase-panel,
    .widget-preview {
        min-height: auto;
    }

    .section-shell {
        padding: 42px 0;
    }

    .section-heading,
    .section-heading.text-start {
        text-align: left !important;
    }

    .flow-step,
    .feature-card {
        min-height: auto;
    }

    .audience-card {
        display: grid;
    }

    .auth-card {
        padding: 22px;
    }

    .navbar .container {
        gap: 14px;
    }

    .navbar-brand {
        width: 100%;
    }

    .brand-logo-public {
        max-width: 136px;
    }
}

@media (max-width: 576px) {
    .landing-hero h1 {
        font-size: 2.08rem;
        line-height: 1.06;
    }

    .showcase-panel h2,
    .section-heading h2,
    .value-band h2,
    .final-cta h2 {
        font-size: 1.65rem;
    }

    .trust-row span,
    .use-case-pill,
    .safety-list span {
        width: 100%;
        justify-content: flex-start;
    }

    .message {
        max-width: 100%;
    }
}