:root {
    --ink: #071326;
    --muted: #59677e;
    --blue: #075cff;
    --blue2: #2784ff;
    --violet: #7c4dff;
    --line: #e3e9f5;
    --soft: #f4f8ff;
    --panel: rgba(255, 255, 255, .88);
    --shadow: 0 28px 80px rgba(15, 38, 82, .16);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, Arial, Helvetica, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at 92% 14%, rgba(124, 77, 255, .22), transparent 30%),
        radial-gradient(circle at 4% 42%, rgba(14, 207, 255, .20), transparent 34%),
        linear-gradient(180deg, #ffffff 0%, #f6faff 54%, #ffffff 100%);
}

body:before,
body:after {
    content: "";
    position: fixed;
    z-index: 0;
    pointer-events: none;
}

body:before {
    inset: 0;
    background-image: radial-gradient(circle, rgba(7, 92, 255, .14) 0 1px, transparent 1.5px);
    background-size: 24px 24px;
    mask-image: linear-gradient(120deg, black, transparent 42%, transparent 72%, black);
    opacity: .55;
}

body:after {
    inset: auto 0 0 0;
    height: 280px;
    background: linear-gradient(90deg, rgba(7, 92, 255, .10), rgba(14, 207, 255, .12), rgba(124, 77, 255, .10));
    filter: blur(18px);
}

a {
    color: inherit;
    text-decoration: none;
}

.topbar {
    position: relative;
    z-index: 2;
    width: min(1400px, calc(100% - 48px));
    margin: 22px auto 0;
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #060f33;
    font-size: 25px;
    font-weight: 950;
    letter-spacing: .14em;
}

.brand img {
    width: 44px;
    height: 44px;
    border-radius: 13px;
    object-fit: cover;
    object-position: center 38%;
    box-shadow: 0 12px 30px rgba(7, 92, 255, .18);
}

.brand strong {
    color: var(--blue);
    font-weight: 750;
    letter-spacing: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    color: #071326;
    font-size: 15px;
    font-weight: 850;
}

.nav-links a {
    transition: color .18s ease, transform .18s ease;
}

.nav-links a:hover {
    color: var(--blue);
    transform: translateY(-1px);
}

.nav-cta {
    color: white !important;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue), var(--violet));
    box-shadow: 0 16px 34px rgba(7, 92, 255, .24);
}

main {
    position: relative;
    z-index: 1;
}

.hero {
    width: min(1400px, calc(100% - 48px));
    margin: 46px auto 0;
    min-height: 680px;
    display: grid;
    grid-template-columns: .72fr 1.28fr;
    gap: 34px;
    align-items: center;
}

.hero-copy {
    padding: 24px 0 64px;
}

.eyebrow {
    margin: 0 0 18px;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: .18em;
    font-size: 12px;
    font-weight: 950;
}

h1 {
    margin: 0;
    max-width: 520px;
    font-size: clamp(52px, 5.8vw, 82px);
    line-height: .98;
    letter-spacing: -.055em;
}

h1 span {
    display: block;
    color: transparent;
    background: linear-gradient(135deg, var(--blue), var(--blue2) 48%, var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
}

.lead {
    max-width: 560px;
    margin: 24px 0 0;
    color: var(--muted);
    font-size: 20px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.btn {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 28px;
    border-radius: 13px;
    font-weight: 900;
    transition: transform .18s ease, box-shadow .18s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn.primary {
    color: white;
    background: linear-gradient(135deg, var(--blue), var(--violet));
    box-shadow: 0 20px 38px rgba(7, 92, 255, .24);
}

.btn.ghost {
    color: var(--blue);
    background: white;
    border: 1px solid rgba(7, 92, 255, .25);
    box-shadow: 0 14px 32px rgba(15, 38, 82, .08);
}

.trust-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-top: 34px;
    color: var(--muted);
    font-weight: 800;
}

.stars {
    color: #f6b11a;
    letter-spacing: .14em;
    font-size: 22px;
}

.product-scene {
    position: relative;
    min-height: 610px;
}

.product-scene:before {
    content: "";
    position: absolute;
    inset: -36px -28px 40px 10%;
    border-radius: 46px;
    background: linear-gradient(135deg, rgba(7, 92, 255, .08), rgba(124, 77, 255, .14));
    filter: blur(.2px);
    transform: rotate(-1.5deg);
}

.mockup {
    position: relative;
    width: 122%;
    max-width: none;
    margin-left: -8%;
    display: block;
    border-radius: 34px;
    box-shadow: var(--shadow);
    animation: lift 6s ease-in-out infinite;
}

.feature-strip {
    width: min(1300px, calc(100% - 48px));
    margin: -16px auto 52px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.feature-strip article {
    min-height: 122px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, .88);
    box-shadow: 0 18px 42px rgba(15, 38, 82, .08);
}

.feature-strip span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 12px;
    margin-bottom: 12px;
    color: var(--blue);
    background: #edf5ff;
    font-size: 12px;
    font-weight: 950;
}

.feature-strip strong {
    display: block;
    font-size: 16px;
    font-weight: 950;
}

.feature-strip p {
    margin: 8px 0 0;
    color: var(--muted);
    line-height: 1.45;
    font-size: 14px;
}

.assistant-panel {
    width: min(1280px, calc(100% - 48px));
    margin: 0 auto 34px;
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(390px, .62fr);
    gap: 24px;
    align-items: stretch;
}

.chat-preview {
    min-height: 610px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .8);
    border-radius: 30px;
    background: white;
    box-shadow: var(--shadow);
}

.chat-preview img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
}

.chat-card {
    min-height: 610px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .78);
    border-radius: 30px;
    background: var(--panel);
    color: var(--ink);
    box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 255, 255, .55);
    padding: 24px;
    backdrop-filter: blur(18px);
}

.chat-card:before {
    content: "";
    position: absolute;
    inset: -100px -120px auto auto;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(7, 92, 255, .18), transparent 66%);
}

.chat-header {
    position: relative;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    border-bottom: 1px solid var(--line);
    padding-bottom: 18px;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 8px;
    color: #37506f;
    font-weight: 800;
}

.status span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 6px rgba(34, 197, 94, .12);
}

h2 {
    margin: 0;
    color: var(--blue);
    font-size: 44px;
    line-height: .92;
    letter-spacing: -.05em;
}

.chat-header p:last-child {
    margin: 7px 0 0;
    color: #31445f;
    font-weight: 800;
}

.small-link {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 10px 13px;
    background: white;
    color: #0f2f60;
    font-size: 13px;
    font-weight: 900;
    white-space: nowrap;
}

.messages {
    height: 265px;
    overflow: auto;
    padding: 20px 2px 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message {
    width: fit-content;
    max-width: 88%;
    border-radius: 20px;
    padding: 14px 16px;
    box-shadow: 0 12px 26px rgba(15, 23, 42, .07);
}

.message p {
    margin: 0;
    line-height: 1.5;
    color: #31445f;
}

.message strong {
    display: block;
    margin-bottom: 5px;
    color: var(--ink);
}

.message.vera {
    background: white;
    border: 1px solid var(--line);
}

.message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--blue), #0a86ff);
}

.message.user p {
    color: white;
}

.message-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.message-links a {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 7px 10px;
    border-radius: 999px;
    background: var(--soft);
    color: var(--blue);
    font-size: 13px;
    font-weight: 900;
}

.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 4px 0 16px;
}

.suggestions button {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: white;
    color: #0f2f60;
    padding: 9px 11px;
    font: inherit;
    font-size: 13px;
    font-weight: 900;
    cursor: pointer;
}

.composer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.composer input {
    min-height: 58px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: white;
    color: var(--ink);
    padding: 0 16px;
    font: inherit;
    font-weight: 700;
    outline: none;
}

.composer input:focus {
    border-color: rgba(7, 92, 255, .5);
    box-shadow: 0 0 0 5px rgba(7, 92, 255, .08);
}

.composer button {
    min-height: 58px;
    border: 0;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--blue), #0a86ff);
    color: white;
    padding: 0 22px;
    font: inherit;
    font-weight: 950;
    cursor: pointer;
    box-shadow: 0 18px 36px rgba(7, 92, 255, .24);
}

.quick-links {
    width: min(1100px, calc(100% - 48px));
    margin: 0 auto 50px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.quick-links a {
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: white;
    color: #0f2f60;
    box-shadow: 0 16px 38px rgba(15, 38, 82, .08);
    font-weight: 950;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.quick-links a:hover {
    transform: translateY(-3px);
    border-color: rgba(7, 92, 255, .38);
    box-shadow: 0 24px 48px rgba(7, 92, 255, .14);
}

@keyframes lift {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@media (max-width: 1180px) {
    .hero,
    .assistant-panel {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .product-scene {
        min-height: auto;
    }

    .mockup {
        width: 100%;
        margin-left: 0;
    }

    .feature-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        margin-top: 28px;
    }
}

@media (max-width: 820px) {
    .topbar,
    .hero,
    .feature-strip,
    .assistant-panel,
    .quick-links {
        width: min(100% - 28px, 720px);
    }

    .topbar {
        align-items: flex-start;
    }

    .nav-links {
        gap: 10px;
        flex-wrap: wrap;
        justify-content: flex-end;
        font-size: 13px;
    }

    .nav-links a:not(.nav-cta):nth-child(-n+3) {
        display: none;
    }

    .brand {
        font-size: 18px;
    }

    .brand img {
        width: 38px;
        height: 38px;
    }

    h1 {
        font-size: 48px;
    }

    .lead {
        font-size: 17px;
    }

    .feature-strip,
    .quick-links {
        grid-template-columns: 1fr;
    }

    .assistant-panel {
        grid-template-columns: 1fr;
    }

    .chat-preview {
        min-height: 360px;
    }

    .chat-card {
        min-height: auto;
        border-radius: 24px;
        padding: 18px;
    }

    .chat-header {
        display: block;
    }

    .small-link {
        display: inline-flex;
        margin-top: 14px;
    }

    .messages {
        height: 320px;
    }

    .message {
        max-width: 94%;
    }

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