/* ReplyFlow design system */
:root {
    --bg0: #0f1c1a;
    --bg1: #16302b;
    --bg2: #1e3d36;
    --ink: #f3f0e8;
    --muted: #b7c4bf;
    --line: rgba(243, 240, 232, 0.12);
    --accent: #d4a24c;
    --accent-2: #7ec8b4;
    --danger: #e07a5f;
    --ok: #7ec8b4;
    --card: rgba(22, 48, 43, 0.72);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    --radius: 18px;
    --font-display: "Syne", sans-serif;
    --font-body: "Manrope", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background:
        radial-gradient(1200px 700px at 10% -10%, #2a5a4e 0%, transparent 55%),
        radial-gradient(900px 600px at 100% 0%, #3a2f18 0%, transparent 50%),
        linear-gradient(160deg, var(--bg0), #122421 45%, #0c1614);
    background-attachment: fixed;
}

a {
    color: var(--accent-2);
    text-decoration: none;
}

a:hover {
    color: var(--accent);
}

.shell {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.03em;
    font-size: 1.35rem;
    color: var(--ink);
}

.brand-mark {
    width: 2rem;
    height: 2rem;
    border-radius: 0.55rem;
    background:
        linear-gradient(135deg, var(--accent), #f0d29a),
        var(--accent);
    box-shadow: 0 0 0 4px rgba(212, 162, 76, 0.15);
    animation: pulse-mark 3.2s ease-in-out infinite;
}

@keyframes pulse-mark {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.06);
    }
}

.nav {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
}

.nav a {
    color: var(--muted);
    font-size: 0.95rem;
}

.hero {
    min-height: calc(100vh - 5.5rem);
    display: grid;
    align-items: end;
    padding: 2rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero-copy {
    max-width: 38rem;
    position: relative;
    z-index: 2;
    animation: rise 0.9s ease both;
}

@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 7vw, 5.2rem);
    line-height: 0.95;
    letter-spacing: -0.045em;
    margin: 0 0 1rem;
}

.hero p {
    color: var(--muted);
    font-size: 1.1rem;
    line-height: 1.55;
    margin: 0 0 1.6rem;
    max-width: 32rem;
}

.cta-row {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border: 0;
    border-radius: 999px;
    padding: 0.85rem 1.25rem;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #e8c078);
    color: #1a1408;
}

.btn-ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
}

.hero-visual {
    position: absolute;
    inset: 8% 0 auto auto;
    width: min(48vw, 520px);
    height: min(62vh, 560px);
    border-radius: 28% 48% 36% 54% / 42% 30% 55% 40%;
    background:
        linear-gradient(145deg, rgba(126, 200, 180, 0.35), transparent 55%),
        linear-gradient(320deg, rgba(212, 162, 76, 0.4), transparent 50%),
        #214940;
    filter: blur(0.2px);
    animation: morph 12s ease-in-out infinite;
    z-index: 1;
}

@keyframes morph {
    0%,
    100% {
        border-radius: 28% 48% 36% 54% / 42% 30% 55% 40%;
        transform: translateY(0) rotate(0deg);
    }
    50% {
        border-radius: 48% 28% 54% 36% / 30% 48% 36% 52%;
        transform: translateY(12px) rotate(4deg);
    }
}

.section {
    padding: 3.5rem 0;
    border-top: 1px solid var(--line);
}

.section h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    letter-spacing: -0.03em;
    margin: 0 0 0.6rem;
}

.section > p {
    color: var(--muted);
    margin: 0 0 1.5rem;
    max-width: 40rem;
}

.feature-list {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature {
    padding: 1.1rem 0;
    border-top: 1px solid var(--line);
}

.feature h3 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
}

.feature p {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
    font-size: 0.95rem;
}

.panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.chat-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem 0 2rem;
}

@media (min-width: 900px) {
    .chat-layout {
        grid-template-columns: 1.5fr 0.9fr;
        align-items: start;
    }
}

.chat-panel {
    display: flex;
    flex-direction: column;
    min-height: 70vh;
}

.chat-header {
    padding: 1rem 1.1rem;
    border-bottom: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
}

.chat-header h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.35rem;
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.bubble {
    max-width: 85%;
    padding: 0.85rem 1rem;
    border-radius: 1rem;
    line-height: 1.45;
    white-space: pre-wrap;
    animation: rise 0.35s ease both;
}

.bubble.user {
    align-self: flex-end;
    background: rgba(212, 162, 76, 0.22);
    border: 1px solid rgba(212, 162, 76, 0.35);
}

.bubble.assistant {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
}

.composer {
    display: flex;
    gap: 0.6rem;
    padding: 0.9rem;
    border-top: 1px solid var(--line);
}

.composer input {
    flex: 1;
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.25);
    color: var(--ink);
    border-radius: 999px;
    padding: 0.85rem 1rem;
    font: inherit;
}

.composer input:focus {
    outline: 1px solid rgba(212, 162, 76, 0.55);
}

.side-stack {
    display: grid;
    gap: 1rem;
}

.side-card {
    padding: 1rem 1.1rem;
}

.side-card h2 {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-family: var(--font-display);
}

.kv {
    display: grid;
    gap: 0.45rem;
    font-size: 0.92rem;
}

.kv div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px dashed var(--line);
    padding-bottom: 0.35rem;
}

.kv span:last-child {
    color: var(--muted);
    text-align: right;
}

.slots {
    display: grid;
    gap: 0.5rem;
}

.slot-btn {
    text-align: left;
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.2);
    color: var(--ink);
    border-radius: 12px;
    padding: 0.7rem 0.8rem;
    cursor: pointer;
    font: inherit;
}

.slot-btn:hover {
    border-color: rgba(126, 200, 180, 0.6);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.85rem;
    margin: 1rem 0 1.5rem;
}

.stat {
    padding: 1rem;
}

.stat .label {
    color: var(--muted);
    font-size: 0.85rem;
}

.stat .value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-top: 0.25rem;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

th,
td {
    text-align: left;
    padding: 0.7rem 0.55rem;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th {
    color: var(--muted);
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    font-size: 0.75rem;
    color: var(--muted);
}

.badge.ok {
    color: var(--ok);
    border-color: rgba(126, 200, 180, 0.4);
}

.badge.warn {
    color: var(--danger);
    border-color: rgba(224, 122, 95, 0.45);
}

.footer {
    padding: 2rem 0 3rem;
    color: var(--muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--line);
}

@media (max-width: 720px) {
    .hero-visual {
        opacity: 0.35;
        width: 70vw;
        height: 40vh;
    }

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