/* ============================================================
   BIN Lookup -- Dark Terminal Theme
   ============================================================ */

:root {
    --bg:            #07090f;
    --surface:       #0c1018;
    --surface-2:     #101520;
    --border:        #1a2535;
    --border-light:  #1e3050;
    --accent:        #00b4d8;
    --accent-glow:   rgba(0, 180, 216, 0.12);
    --accent-dim:    rgba(0, 180, 216, 0.06);
    --success:       #10b981;
    --danger:        #ef4444;
    --warning:       #f59e0b;
    --text:          #dde4ef;
    --text-dim:      #8fa3be;
    --text-muted:    #4d6585;
    --font-mono:     'Space Mono', 'Courier New', monospace;
    --font-body:     'DM Sans', system-ui, sans-serif;
    --radius:        3px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ---- Body / dot-grid background ---- */
body {
    background-color: var(--bg);
    background-image: radial-gradient(circle, #1c3050 1px, transparent 1px);
    background-size: 30px 30px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
}

/* ---- App shell ---- */
.app {
    max-width: 1240px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

/* ============================================================
   HEADER
   ============================================================ */
.app-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.header-eyebrow {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.22em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 0.65rem;
}

.eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent), 0 0 20px var(--accent-glow);
    animation: blink 2.4s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.3; }
}

h1 {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--text);
}

h1 .accent {
    color: var(--accent);
    text-shadow: 0 0 30px rgba(0, 180, 216, 0.35);
}

.header-sub {
    margin-top: 0.55rem;
    font-size: 0.88rem;
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 0.025em;
}

/* ---- Status area ---- */
.header-status { text-align: right; }

.status-msg {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.sdot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sdot.loading { background: var(--warning); animation: blink 1s ease-in-out infinite; }
.sdot.success { background: var(--success); box-shadow: 0 0 6px var(--success); }
.sdot.error   { background: var(--danger); }

/* script.js injects Bootstrap alert markup; restyle it for our theme */
#status-container .alert {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    margin-bottom: 0;
}

#status-container .alert-success { color: var(--success); }
#status-container .alert-danger  { color: var(--danger); }
#status-container .alert-warning { color: var(--warning); }
#status-container .alert-info    { color: var(--accent); }

/* ============================================================
   SEARCH PANEL
   ============================================================ */
.search-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

/* ---- Tabs ---- */
.tab-bar {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    padding: 0.8rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover        { color: var(--text); }
.tab-btn.active       { color: var(--accent); border-bottom-color: var(--accent); }
.tab-glyph            { font-size: 0.55rem; }

/* ---- Tab panels ---- */
.tab-panel        { display: none; }
.tab-panel.active { display: block; }

.search-form {
    padding: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group.flex-grow { flex: 1; min-width: 200px; }
.form-group.form-action { min-width: 120px; }

.form-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.form-control,
.form-select {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    padding: 0.6rem 0.9rem;
    width: 100%;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    -webkit-appearance: none;
    appearance: none;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%234d6585' d='M5 7L0 2h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    padding-right: 2.2rem;
    cursor: pointer;
}

.form-control::placeholder { color: var(--text-muted); }

.form-control:focus,
.form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.hint {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ---- Search button ---- */
.btn-search {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    padding: 0.68rem 1.25rem;
    width: 100%;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
}

.btn-search:hover {
    background: #14c8ec;
    box-shadow: 0 0 22px rgba(0, 180, 216, 0.45);
}

.btn-search:active { transform: scale(0.97); }

/* ============================================================
   RESULTS PANEL
   ============================================================ */
.results-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    animation: rise 0.25s ease;
}

@keyframes rise {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.results-title {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.btn-export {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    padding: 0.38rem 0.85rem;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.btn-export:hover {
    color: var(--success);
    border-color: var(--success);
}

/* ============================================================
   TABLE
   ============================================================ */
.table-container {
    overflow: auto;
    max-height: 560px;
}

/* Script generates: <table class="table table-striped table-hover dataframe"> */
table.dataframe {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

table.dataframe thead th {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 0.62rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

table.dataframe thead th:hover { color: var(--accent); }

table.dataframe tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}

table.dataframe tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.012);
}

table.dataframe tbody tr:hover {
    background: var(--accent-dim);
}

table.dataframe td {
    padding: 0.55rem 1rem;
    color: var(--text-dim);
    white-space: nowrap;
}

/* First column (BIN number) gets accent treatment */
table.dataframe td:first-child {
    color: var(--accent);
    font-weight: 700;
}

/* ============================================================
   PAGINATION
   ============================================================ */
#pagination-container {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

.pagination {
    display: flex;
    list-style: none;
    gap: 0.2rem;
    flex-wrap: wrap;
    justify-content: center;
    /* Bootstrap adds these classes which we don't need to override, just handle .pagination itself */
}

.page-item .page-link {
    display: block;
    padding: 0.32rem 0.65rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    cursor: pointer;
    text-decoration: none;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
    line-height: 1.4;
}

.page-item .page-link:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.page-item.active .page-link {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
}

.page-item.disabled .page-link {
    opacity: 0.25;
    cursor: not-allowed;
    pointer-events: none;
}

/* Page count line (script generates a .text-center.text-muted.mt-2.small div) */
.text-center { text-align: center; }
.text-muted   { color: var(--text-muted); }
.mt-2         { margin-top: 0.4rem; }
.small        { font-family: var(--font-mono); font-size: 0.68rem; }

/* ============================================================
   UTILITIES  (required by script.js)
   ============================================================ */
.d-none { display: none !important; }
.mb-0   { margin-bottom: 0; }

/* ============================================================
   MOBILE
   ============================================================ */
@media (max-width: 640px) {
    .app { padding: 1.25rem 1rem 3rem; }

    .app-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
    }

    .header-status { text-align: left; align-self: stretch; }
    .status-msg    { justify-content: flex-start; }

    .form-row {
        flex-direction: column;
    }

    .form-group,
    .form-group.flex-grow,
    .form-group.form-action { width: 100%; }

    .table-container { max-height: 380px; }

    .results-header { flex-wrap: wrap; gap: 0.75rem; }
}