:root {
    --green: #0f6b52;
    --green-dark: #0a4f3c;
    --gold: #c9a24b;
    --bg: #f6f5f1;
    --card: #ffffff;
    --text: #22282b;
    --muted: #6b7378;
    --border: #e3e1da;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Noto Sans Bengali', 'SolaimanLipi', 'Segoe UI', Tahoma, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.navbar {
    background: var(--green-dark);
    color: #fff;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.navbar a { color: #fff; text-decoration: none; }
.navbar .brand { font-size: 1.3rem; font-weight: 700; }
.navbar .brand span { color: var(--gold); }
.navbar .nav-links a { margin-left: 18px; opacity: 0.9; }
.navbar .nav-links a:hover { opacity: 1; text-decoration: underline; }

.container {
    max-width: 760px;
    margin: 40px auto;
    padding: 0 16px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

h1, h2, h3 { color: var(--green-dark); margin-top: 0; }

label { display: block; margin: 14px 0 6px; font-weight: 600; font-size: 0.92rem; }

input[type=text], input[type=email], input[type=password], select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
}

.btn {
    display: inline-block;
    background: var(--green);
    color: #fff;
    border: none;
    padding: 11px 22px;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    margin-top: 16px;
}
.btn:hover { background: var(--green-dark); }
.btn-secondary { background: #fff; color: var(--green-dark); border: 1px solid var(--green); }

.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 0.92rem;
}
.alert-error { background: #fdeaea; color: #a33; border: 1px solid #f3c6c6; }
.alert-success { background: #eaf7ef; color: #1b7a4a; border: 1px solid #c7ecd8; }

.post-option {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 18px;
    background: #fdfcf9;
}
.post-option h4 {
    margin: 0 0 8px;
    color: var(--gold);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.post-option pre {
    white-space: pre-wrap;
    font-family: inherit;
    font-size: 0.98rem;
    line-height: 1.5;
    margin: 0 0 12px;
}
.share-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.share-btn {
    padding: 7px 14px;
    border-radius: 5px;
    font-size: 0.85rem;
    text-decoration: none;
    color: #fff;
}
.share-fb { background: #1877f2; }
.share-wa { background: #25d366; }
.share-tw { background: #14171a; }
.share-copy { background: #888; border: none; cursor: pointer; }

.history-item {
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}
.history-item small { color: var(--muted); }

.muted { color: var(--muted); font-size: 0.9rem; }