:root { color: #17232b; background: #f4f7f7; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-synthesis: none; }
* { box-sizing: border-box; }

[hidden] { display: none !important; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 92% 0, #d9f2eb 0, transparent 29rem), #f4f7f7; }
button, input, select, textarea { font: inherit; }
button { min-height: 42px; border: 1px solid #0c766b; border-radius: 10px; padding: 9px 14px; background: #0c766b; color: #fff; font-weight: 760; cursor: pointer; transition: background .16s ease, border-color .16s ease, transform .16s ease; }
button:hover { background: #085e56; border-color: #085e56; } button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid #75cdbd; outline-offset: 2px; }
button:active { transform: translateY(1px); } button.secondary { background: #e5f5f1; color: #075a52; border-color: #b8e2d9; } button.secondary:hover { background: #d2eee6; }
button.link { min-height: auto; padding: 0; border: 0; border-radius: 0; background: transparent; color: #08746a; text-decoration: underline; text-underline-offset: 3px; }
.app-shell { width: min(1480px, 100%); margin: 0 auto; padding: 28px clamp(16px, 3vw, 42px) 56px; }
.hero { display: flex; align-items: center; gap: 17px; padding: 18px 0 32px; } .brand-mark { display: grid; width: 46px; height: 46px; place-items: center; border-radius: 14px; background: #073b36; color: #d4f6ed; font-size: 23px; font-weight: 850; box-shadow: 0 10px 22px #073b3633; }
.hero-copy { min-width: 0; } h1, h2, p { margin-top: 0; } h1 { margin-bottom: 5px; color: #073b36; font-size: clamp(27px, 4vw, 38px); letter-spacing: -.04em; line-height: 1.05; } h2 { color: #113933; font-size: 19px; letter-spacing: -.02em; } .hero-copy > p:last-child { max-width: 640px; margin-bottom: 0; color: #526866; }
.hero-status { display: inline-flex; align-items: center; gap: 8px; margin-left: auto; padding: 8px 11px; border-radius: 999px; background: #e6f5f1; color: #075a52; font-size: 12px; font-weight: 750; white-space: nowrap; }.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #18a687; box-shadow: 0 0 0 4px #18a68720; }
.eyebrow { margin-bottom: 6px; color: #08746a; font-size: 11px; font-weight: 800; letter-spacing: .105em; } .hint, small, span { color: #647775; font-size: 12px; line-height: 1.45; } code { border-radius: 4px; padding: 2px 4px; background: #e8efee; color: #324847; }
.card, .campaign-bar { border: 1px solid #dbe5e2; border-radius: 16px; background: #fff; box-shadow: 0 7px 20px #10322b09; }.card { padding: clamp(18px, 2vw, 26px); margin: 18px 0; }.login-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr); gap: 12px 24px; align-items: end; max-width: 850px; }.login-card > div:first-child { grid-row: span 2; }.login-actions { align-items: stretch; }
.campaign-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; padding: 18px 22px; background: linear-gradient(110deg, #fff, #effaf7); }.campaign-bar h2 { margin-bottom: 0; }.campaign-actions, .inline, .section-title { display: flex; align-items: center; gap: 10px; }.section-title { justify-content: space-between; gap: 18px; }.section-title h2 { margin-bottom: 0; }
.delivery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }.delivery-grid p { margin: 0; padding: 14px; border-radius: 11px; background: #f6faf9; }.delivery-grid strong { color: #0b6158; }
.badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 5px 9px; background: #e5f5f1; color: #075a52; font-size: 11px; font-weight: 800; }.metrics { display: grid; grid-template-columns: repeat(8, minmax(116px, 1fr)); gap: 10px; overflow-x: auto; padding-bottom: 3px; }.metric { min-width: 116px; padding: 16px; border: 1px solid #dbe5e2; border-radius: 14px; background: #fff; }.metric span { display: block; color: #647775; }.metric strong { display: block; margin-top: 7px; color: #073b36; font-size: 25px; letter-spacing: -.04em; }
.workspace-grid, .content-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }.workspace-grid .card { margin: 0; }.content-layout { align-items: start; }.content-editor, .preview-panel { min-width: 0; }.preview-panel { position: sticky; top: 12px; padding: 16px; border: 1px solid #dbe5e2; border-radius: 13px; background: #f9fbfa; }
.bulk-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; margin: 15px 0 18px; }.compact-grid label { margin: 0; } label { display: grid; gap: 6px; color: #425856; font-size: 12px; font-weight: 780; } input, select, textarea { min-width: 0; width: 100%; border: 1px solid #c8d7d3; border-radius: 9px; padding: 10px 11px; color: #1d302f; background: #fff; } textarea { resize: vertical; line-height: 1.45; } .paired-inputs { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 6px; }.paired-inputs span { text-align: center; }
#preview { display: block; width: 100%; min-height: 515px; border: 1px solid #dbe5e2; border-radius: 9px; background: #fff; }.advanced-card { padding: 0; overflow: hidden; }.advanced-card summary { padding: 18px 22px; color: #0a655c; font-weight: 760; cursor: pointer; }.advanced-card[open] summary { border-bottom: 1px solid #dbe5e2; }.advanced-fields { flex-wrap: wrap; padding: 18px 22px; align-items: end; }.advanced-fields > * { flex: 1 1 160px; }
.recipient-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, .25fr); gap: 10px; margin: 15px 0 4px; }.table-wrap { overflow-x: auto; border: 1px solid #e0e8e6; border-radius: 11px; } table { width: 100%; min-width: 1080px; border-collapse: collapse; background: #fff; } th, td { padding: 13px 12px; border-bottom: 1px solid #e5ecea; text-align: left; vertical-align: top; } tr:last-child td { border-bottom: 0; } th { color: #617572; font-size: 11px; letter-spacing: .04em; text-transform: uppercase; } td { color: #314442; font-size: 13px; } td strong { color: #123b36; }
#message { min-height: 22px; margin: 16px 2px 0; font-size: 13px; font-weight: 650; }.error { color: #b42318; }.success { color: #08746a; }
@media (max-width: 1000px) { .metrics { grid-template-columns: repeat(4, minmax(120px, 1fr)); }.content-layout { grid-template-columns: 1fr; }.preview-panel { position: static; }.login-card { grid-template-columns: 1fr; }.login-card > div:first-child { grid-row: auto; } }
@media (max-width: 720px) { .app-shell { padding-top: 18px; }.hero { align-items: flex-start; flex-wrap: wrap; }.hero-status { margin-left: 63px; }.campaign-bar, .section-title, .inline { align-items: stretch; flex-direction: column; }.campaign-actions { align-items: stretch; flex-direction: column; }.campaign-actions button { width: 100%; }.workspace-grid, .bulk-grid, .recipient-toolbar, .delivery-grid { grid-template-columns: 1fr; }.metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); overflow: visible; }.metric { min-width: 0; }.advanced-fields { flex-direction: column; }.advanced-fields > * { width: 100%; }.card { border-radius: 13px; } }