:root {
    --ink: #111315;
    --muted: #64707d;
    --paper: #f7f5ef;
    --panel: #ffffff;
    --line: #e3ded3;
    --teal: #087f73;
    --teal-dark: #075e56;
    --amber: #d89a22;
    --blue: #253b80;
    --shadow: 0 26px 80px rgba(17, 19, 21, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
main { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 16px min(42px, 5vw);
    border-bottom: 1px solid var(--line);
    background: rgba(247, 245, 239, .92);
    backdrop-filter: blur(18px);
}
.brand, .nav, .hero-actions, .board-top, .automation-row, .admin-head, .lead-meta {
    display: flex;
    align-items: center;
}
.brand { gap: 10px; font-weight: 900; }
.brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    color: #fff;
    background: var(--ink);
    font-size: 12px;
}
.nav { gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.nav a {
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--muted);
    font-weight: 800;
}
.nav a:hover { background: #ece7db; color: var(--ink); }

.flash {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 8px;
    border: 1px solid #b8e0d8;
    background: #e7faf6;
    color: #075e56;
    font-weight: 800;
}
.flash.warning {
    border-color: #efcfa0;
    background: #fff3df;
    color: #7c4200;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 500px);
    gap: 42px;
    align-items: center;
    min-height: 650px;
    padding: 54px 0 44px;
}
.eyebrow {
    color: var(--teal-dark);
    font-size: 13px;
    font-weight: 900;
    text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
.hero h1, .thanks h1, .admin-head h1 {
    max-width: 780px;
    margin: 12px 0 18px;
    font-size: clamp(42px, 6vw, 76px);
    line-height: .96;
    letter-spacing: 0;
}
.section-copy h2 {
    max-width: 760px;
    margin: 10px 0 12px;
    font-size: clamp(34px, 5vw, 56px);
    line-height: 1;
    letter-spacing: 0;
}
.hero p, .section-copy p, .thanks p {
    max-width: 690px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.75;
}
.hero-actions { gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font: inherit;
    font-weight: 900;
    cursor: pointer;
}
.btn.primary { background: var(--teal); color: #fff; }
.btn.primary:hover { background: var(--teal-dark); }
.btn.ghost { background: transparent; border-color: var(--ink); }
.btn.subtle { background: #ece7db; color: var(--ink); }

.ops-board {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: var(--shadow);
}
.board-top { justify-content: space-between; gap: 16px; padding: 10px 4px 18px; }
.board-top span { color: var(--muted); font-weight: 850; }
.board-top strong { color: var(--teal-dark); }
.metric-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}
.metric-grid article {
    padding: 14px;
    border-radius: 8px;
    background: #f0ede5;
}
.metric-grid span { display: block; color: var(--muted); font-size: 12px; font-weight: 850; }
.metric-grid strong { display: block; margin-top: 8px; font-size: 26px; }
.conversation-preview, .chat-log {
    display: grid;
    align-content: start;
    gap: 12px;
    padding: 16px;
    border-radius: 8px;
    background: #14171b;
}
.bubble {
    max-width: 84%;
    padding: 12px 14px;
    border-radius: 8px;
    line-height: 1.55;
    white-space: pre-line;
}
.bubble.buyer { justify-self: end; background: #fff; color: var(--ink); }
.bubble.agent { background: #dff8f3; color: #063c37; }
.automation-row {
    justify-content: space-between;
    gap: 12px;
    padding: 11px 12px;
    border-radius: 8px;
    background: #20252b;
    color: #d7dde3;
}
.automation-row strong { color: #8fe8d8; }

.service-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    padding: 24px 0 56px;
}
.service-strip article, .package, .lead-form, .login-panel, .lead-item, .stat-grid article {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}
.service-strip article { padding: 20px; }
.service-strip span {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    margin-bottom: 18px;
    border-radius: 8px;
    background: var(--amber);
    color: #211505;
    font-weight: 950;
}
.service-strip h2 { margin-bottom: 10px; font-size: 24px; }
.service-strip p, .package p, .lead-main p { color: var(--muted); line-height: 1.65; }

.demo-section, .lead-section {
    display: grid;
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    padding: 46px 0;
    border-top: 1px solid var(--line);
}
.chat-panel {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
}
.chat-log {
    min-height: 420px;
    overflow-y: auto;
    border-radius: 0;
}
.chat-form {
    display: grid;
    grid-template-columns: 1fr 110px;
    gap: 10px;
    padding: 14px;
    border-top: 1px solid var(--line);
}
input, textarea, select {
    width: 100%;
    min-height: 46px;
    padding: 11px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}
label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 850;
}

.pricing { padding: 48px 0; border-top: 1px solid var(--line); }
.package-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.package {
    display: grid;
    gap: 18px;
    padding: 22px;
}
.package h3 { margin-bottom: 12px; font-size: 26px; }
.package strong { display: block; color: var(--teal-dark); font-size: 34px; }
.package ul {
    display: grid;
    gap: 10px;
    padding-left: 18px;
    color: var(--muted);
}

.lead-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding: 20px;
}
.full { grid-column: 1 / -1; }

.thanks, .login-panel {
    width: min(620px, 100%);
    margin: 70px auto;
    padding: 28px;
}
.stack-form { display: grid; gap: 14px; margin-top: 18px; }

.admin-head { justify-content: space-between; gap: 20px; padding: 42px 0 20px; }
.admin-head h1 { font-size: clamp(36px, 5vw, 58px); }
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.stat-grid article { padding: 18px; background: var(--ink); color: #fff; }
.stat-grid span { color: #cbd2d9; font-weight: 850; }
.stat-grid strong { display: block; margin-top: 8px; font-size: 34px; }
.lead-list { display: grid; gap: 14px; padding-bottom: 60px; }
.lead-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 18px;
    padding: 18px;
}
.status {
    display: inline-flex;
    margin-bottom: 10px;
    padding: 7px 10px;
    border-radius: 999px;
    background: #dff8f3;
    color: var(--teal-dark);
    font-size: 12px;
    font-weight: 950;
}
.lead-main h2 { margin-bottom: 8px; }
.lead-meta { flex-wrap: wrap; gap: 8px; }
.lead-meta span {
    padding: 7px 9px;
    border-radius: 8px;
    background: #f0ede5;
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}
.lead-update { display: grid; gap: 10px; }
.empty-state {
    padding: 28px;
    border: 1px dashed #c8bfae;
    border-radius: 8px;
    background: #fff;
    text-align: center;
}
.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 28px min(42px, 5vw);
    border-top: 1px solid var(--line);
    color: var(--muted);
}
.site-footer strong { color: var(--ink); }

.admin-body {
    min-height: 100vh;
    background: #eef1f4;
}
.admin-shell {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 100vh;
}
.admin-sidebar {
    position: sticky;
    top: 0;
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 22px;
    height: 100vh;
    padding: 22px;
    background: #11161c;
    color: #fff;
}
.admin-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.admin-brand small {
    display: block;
    margin-top: 4px;
    color: #96a0ac;
    font-size: 12px;
    font-weight: 800;
}
.admin-nav {
    display: grid;
    align-content: start;
    gap: 8px;
}
.admin-nav a, .admin-logout button {
    width: 100%;
    min-height: 44px;
    padding: 0 14px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #c9d1db;
    font: inherit;
    font-weight: 900;
    text-align: left;
    cursor: pointer;
}
.admin-nav a.active, .admin-nav a:hover, .admin-logout button:hover {
    background: #202a35;
    color: #fff;
}
.admin-logout {
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, .1);
}
.admin-main {
    width: min(1240px, calc(100% - 44px));
    margin: 0 auto;
    padding: 34px 0 60px;
}
.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}
.admin-topbar h1 {
    margin: 8px 0 8px;
    font-size: clamp(34px, 5vw, 56px);
    line-height: 1;
}
.admin-topbar p {
    max-width: 660px;
    margin: 0;
    color: #687482;
    line-height: 1.65;
}
.admin-stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}
.admin-stat-grid article {
    padding: 18px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid #dce1e6;
}
.admin-stat-grid span, .admin-stat-grid small {
    display: block;
    color: #687482;
    font-weight: 850;
}
.admin-stat-grid strong {
    display: block;
    margin: 8px 0 4px;
    color: #11161c;
    font-size: 34px;
}
.admin-panel {
    padding: 18px;
    border: 1px solid #dce1e6;
    border-radius: 8px;
    background: #fff;
}
.panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid #e7ebef;
}
.panel-heading h2 {
    margin: 5px 0 0;
    font-size: 28px;
}
.panel-heading > span {
    color: #687482;
    font-weight: 900;
}
.admin-lead-table {
    display: grid;
    gap: 12px;
}
.admin-lead-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 18px;
    padding: 16px;
    border: 1px solid #e7ebef;
    border-radius: 8px;
    background: #fbfcfd;
}
.lead-identity h3 {
    margin: 0 0 8px;
    font-size: 22px;
}
.lead-identity p {
    margin-bottom: 12px;
    color: #536173;
    line-height: 1.65;
}
.lead-meta a {
    padding: 7px 9px;
    border-radius: 8px;
    background: #e7f7f4;
    color: var(--teal-dark);
    font-size: 13px;
    font-weight: 900;
}
.admin-login-panel {
    width: min(520px, 100%);
    margin: 90px auto;
    padding: 28px;
    border: 1px solid #dce1e6;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 24px 70px rgba(17, 22, 28, .08);
}
.admin-login-panel h1 {
    margin: 10px 0 18px;
    font-size: clamp(34px, 5vw, 48px);
    line-height: 1;
}

@media (max-width: 920px) {
    .hero, .demo-section, .lead-section, .lead-item { grid-template-columns: 1fr; }
    .service-strip, .package-grid, .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .admin-shell, .admin-lead-row { grid-template-columns: 1fr; }
    .admin-sidebar {
        position: static;
        height: auto;
    }
    .admin-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
    main { width: min(100% - 22px, 1180px); }
    .site-header, .site-footer, .admin-head { align-items: flex-start; flex-direction: column; }
    .hero { min-height: auto; padding-top: 34px; }
    .hero h1, .thanks h1 { font-size: 40px; }
    .service-strip, .package-grid, .stat-grid, .lead-form, .metric-grid, .chat-form { grid-template-columns: 1fr; }
    .admin-main { width: min(100% - 22px, 1240px); }
    .admin-topbar, .panel-heading { align-items: flex-start; flex-direction: column; }
    .admin-stat-grid { grid-template-columns: 1fr; }
}