@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@500;600&display=swap');

:root {
    --bg: #0f1115;
    --surface: #171a21;
    --surface-2: #1e222c;
    --border: #2a2f3a;
    --text: #eef0f3;
    --muted: #8b909c;
    --accent: #f0a202;       /* সিগন্যাল অ্যাম্বার — রিলিজ/ভার্সন */
    --accent-soft: #f0a20222;
    --live: #ff5d3a;         /* ব্রডকাস্ট/ফোর্স আপডেট */
    --success: #34d399;
    --success-bg: #12291f;
    --error: #f87171;
    --error-bg: #2a1416;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* ---------------- Topbar ---------------- */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 32px;
    border-bottom: 1px solid var(--border);
}
.brand-eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--accent);
    text-transform: uppercase;
    margin: 0 0 4px;
}
.topbar h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 22px;
    font-weight: 600;
    margin: 0;
}
.logout-btn {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 8px;
    transition: border-color 0.15s, color 0.15s;
}
.logout-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ---------------- Layout ---------------- */
.container {
    max-width: 980px;
    margin: 36px auto;
    padding: 0 24px 60px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media (min-width: 860px) {
    .container { grid-template-columns: 1fr 1fr; gap: 24px; }
    .card.span-2 { grid-column: 1 / -1; }
}

/* ছোট স্ক্রিনে (মোবাইল) আরও আঁটসাঁট স্পেসিং ও বড় ট্যাপ-টার্গেট */
@media (max-width: 640px) {
    .topbar { padding: 16px 18px; }
    .topbar h1 { font-size: 18px; }
    .brand-eyebrow { font-size: 10px; }
    .container { margin: 20px auto; padding: 0 14px 40px; gap: 16px; }
    .card { padding: 18px; border-radius: 12px; }
    .version-badge { font-size: 26px; padding: 5px 14px; }
    button { width: 100%; padding: 13px 20px; }
    input, textarea { font-size: 16px; } /* iOS auto-zoom এড়াতে 16px+ */
    .segmented label { padding: 12px 6px; font-size: 12px; }
    .logout-btn { padding: 7px 12px; font-size: 13px; }
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 26px;
}
.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}
.card-head h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    color: var(--text);
}
.card-head .tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ---------------- Version badge (signature element) ---------------- */
.version-badge-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}
.version-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 34px;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid #f0a20244;
    border-radius: 10px;
    padding: 6px 18px;
    line-height: 1;
}
.live-dot {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--success);
    text-transform: uppercase;
}
.live-dot::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
    animation: pulse 2s infinite;
}
@media (prefers-reduced-motion: reduce) {
    .live-dot::before { animation: none; }
}
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.45); }
    70%  { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.info-line {
    display: flex;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.info-line:last-child { border-bottom: none; }
.info-line .k {
    font-family: 'JetBrains Mono', monospace;
    color: var(--muted);
    min-width: 110px;
    font-size: 12px;
    padding-top: 2px;
}
.info-line .v { color: var(--text); word-break: break-all; }
.force-pill {
    display: inline-block;
    font-size: 11px;
    font-family: 'JetBrains Mono', monospace;
    padding: 2px 8px;
    border-radius: 20px;
    background: #ff5d3a22;
    color: var(--live);
}
.empty-state {
    color: var(--muted);
    font-size: 14px;
    border: 1px dashed var(--border);
    border-radius: 10px;
    padding: 18px;
    text-align: center;
}

/* ---------------- Forms ---------------- */
label {
    display: block;
    margin: 16px 0 6px;
    font-size: 13px;
    color: var(--muted);
}
label:first-of-type { margin-top: 0; }
input[type=text], input[type=url], input[type=number], input[type=password], textarea {
    width: 100%;
    padding: 11px 13px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.15s;
}
input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
}
textarea { resize: vertical; }
.mono-input { font-family: 'JetBrains Mono', monospace; }

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text);
    margin-top: 16px;
}
.checkbox-label input { width: auto; accent-color: var(--accent); }

/* segmented control for click target */
.segmented {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-top: 6px;
}
.segmented label {
    flex: 1;
    margin: 0;
    text-align: center;
    padding: 10px;
    font-size: 13px;
    color: var(--muted);
    cursor: pointer;
    background: var(--bg);
    transition: background 0.15s, color 0.15s;
    border-right: 1px solid var(--border);
}
.segmented label:last-child { border-right: none; }
.segmented input { display: none; }
.segmented input:checked + label,
.segmented label.active {
    background: var(--accent-soft);
    color: var(--accent);
}

button {
    margin-top: 20px;
    background: var(--accent);
    color: #1a1200;
    border: none;
    padding: 11px 22px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: filter 0.15s;
}
button:hover { filter: brightness(1.08); }
button.secondary {
    background: transparent;
    border: 1px solid var(--live);
    color: var(--live);
}

.alert {
    padding: 11px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 14px;
}
.alert.success { background: var(--success-bg); color: var(--success); }
.alert.error { background: var(--error-bg); color: var(--error); }

.hint {
    font-size: 12px;
    color: var(--muted);
    margin-top: 14px;
    line-height: 1.5;
}

.img-preview {
    margin-top: 10px;
    border: 1px dashed var(--border);
    border-radius: 10px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--muted);
    font-size: 12px;
}
.img-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

/* ---------------- Login ---------------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-box {
    width: 100%;
    max-width: 360px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 34px;
}
.login-box .brand-eyebrow { text-align: center; }
.login-box h2 {
    font-family: 'Space Grotesk', sans-serif;
    text-align: center;
    margin: 0 0 22px;
    font-size: 20px;
}