/* ------------------------------------------------------------------
   Modern theme — a contemporary dark theme for Nano Node Monitor
   Deep slate background, nano-blue accent, soft glass surfaces.
   ------------------------------------------------------------------ */

/* Load Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

:root {
    --bg:             #0c1118;
    --bg-glow-1:      rgba(63, 169, 245, 0.10);
    --bg-glow-2:      rgba(123, 102, 255, 0.07);
    --surface:        rgba(255, 255, 255, 0.035);
    --surface-raised: rgba(255, 255, 255, 0.055);
    --border:         rgba(255, 255, 255, 0.08);
    --text:           #d8dee9;
    --text-dim:       #8a94a6;
    --heading:        #f0f3f8;
    --accent:         #3fa9f5;
    --accent-soft:    rgba(63, 169, 245, 0.15);
    --radius:         14px;
    --shadow:         0 8px 28px rgba(0, 0, 0, 0.35);
}

/*

 -- Body CSS

 */

body {
    font-family: 'Inter', -apple-system, 'Segoe UI', sans-serif;
    background-color: var(--bg);
    background-image:
        radial-gradient(900px 480px at 12% -8%, var(--bg-glow-1), transparent 60%),
        radial-gradient(800px 420px at 92% 4%, var(--bg-glow-2), transparent 60%);
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text);
    padding-top: 130px;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--accent-soft);
    color: var(--heading);
}

/*

 -- Navigation Menu CSS

 */

.navbar {
    font-size: 1.05rem;
    line-height: 1.6rem;
    letter-spacing: 0.02rem;
    font-weight: 500;
    background-color: rgba(12, 17, 24, 0.78);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    padding: 1.1% 4%;
    border-bottom: 1px solid var(--border);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(63,169,245,1)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E");
}

.n-logo-theme {
    color: var(--heading);
    padding-left: 12px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.nav-link {
    color: var(--text-dim);
    border-radius: 8px;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out;
}

.nav-link:hover {
    color: var(--heading);
    background: var(--surface-raised);
}

/*

 -- Body Content CSS

 */

h2 {
    font-size: 2.4rem;
    line-height: 2.9rem;
    font-weight: 600;
    max-width: 930px;
    color: var(--heading);
}

h3 {
    font-size: 0.82rem;
    font-weight: 600;
    max-width: 930px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.8rem;
    padding-left: 0.75rem;
    border-left: 3px solid var(--accent);
}

p {
    font-size: 0.92rem;
    line-height: 1.45rem;
    letter-spacing: 0.01em;
}

.lead {
    color: var(--heading);
    font-weight: 500;
}

/* glass panels: both bare .list-group columns and .card-wrapped ones */

.card {
    background-color: transparent !important;
    border: none;
    font-size: 0.9rem;
}

.list-group {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.18s ease, border-color 0.18s ease;
}

.list-group:hover {
    transform: translateY(-2px);
    border-color: rgba(63, 169, 245, 0.35);
}

.list-group-item {
    background-color: transparent !important;
    color: var(--text) !important;
    border: none;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    padding: 0.85rem 1.1rem;
}

.list-group-item:first-child {
    border-top: none;
}

/* metric labels on the left, values on the right */
.float-left-truncate {
    color: var(--text-dim);
}

.float-right-truncate {
    color: var(--heading);
    font-variant-numeric: tabular-nums;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

a:hover {
    color: #7cc4f8;
    text-decoration: none;
}

/* social buttons in the banner */
.btn-secondary {
    background-color: var(--surface-raised);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.btn-secondary:hover {
    background-color: var(--accent-soft);
    border-color: var(--accent);
    color: var(--heading);
}

/* update alert */
.alert-warning {
    background-color: var(--accent-soft);
    border: 1px solid rgba(63, 169, 245, 0.4);
    border-radius: var(--radius);
    color: var(--heading);
}

.alert-warning .alert-link,
.alert-warning .close {
    color: var(--accent);
}

/* loading spinner */
#content > .fa-spinner {
    color: var(--accent);
}

/* soften the QR widget against the dark page */
.n-widget-qr {
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow);
}

hr.light {
    display: block;
    height: 1px;
    border: 0;
    border-top: 1px solid var(--border);
    margin: 1em 0;
    padding: 0;
    opacity: 1;
}

.btn-clipboard,
.btn-clipboard-light {
    color: var(--text-dim);
}

.btn-clipboard:hover,
.btn-clipboard-light:hover {
    color: var(--accent);
}

/* footer */
#footer {
    color: var(--text-dim);
}

#footer a {
    color: var(--text-dim);
}

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

/* scrollbar (WebKit/Blink) */
::-webkit-scrollbar {
    width: 10px;
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--surface-raised);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-soft);
}