@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

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

:root {
    --bg:          #f0f2f5;
    --bg-card:     #ffffff;
    --bg-elevated: #f7f8fa;
    --border:      #dde1e8;
    --border-lit:  #c4cad6;
    --border-strong: #9aa3b5;

    --fresh:        #00875a;
    --fresh-bg:     #e6f4ef;
    --fresh-border: #b3dece;
    --caution:        #b45309;
    --caution-bg:     #fef3e2;
    --caution-border: #f0c070;
    --rotten:        #c0392b;
    --rotten-bg:     #fde8e7;
    --rotten-border: #f0b0ad;
    --neutral: #5c6b82;

    --accent:       #1d4ed8;
    --accent-bg:    #eff3ff;
    --accent-light: #93aee8;

    --text-primary:   #0f172a;
    --text-secondary: #334155;
    --text-dim:       #64748b;
    --text-muted:     #94a3b8;

    --mono: 'IBM Plex Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;
    --radius: 4px;
    --radius-lg: 6px;
    --shadow-sm: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
    --shadow-md: 0 4px 12px rgba(15,23,42,0.08), 0 2px 4px rgba(15,23,42,0.04);
    --transition: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }
body {
    font-family: var(--sans);
    background-color: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed; inset: 0;
    background-image:
        linear-gradient(rgba(29,78,216,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(29,78,216,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none; z-index: 0;
}

/* ── HEADER ── */
.header {
    border-bottom: 2px solid var(--border);
    position: sticky; top: 0;
    background: #fff; z-index: 100;
    box-shadow: var(--shadow-sm);
}
.header-inner {
    max-width: 1500px; margin: 0 auto;
    padding: 0 36px;
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
}
.header-left { display: flex; align-items: center; }

.asset-preview {
    height: 60px;
    width: auto;
    object-fit: contain;
    display: block;
}

.header-divider { width: 1px; height: 32px; background: var(--border); margin: 0 22px; }

.header-title {
    font-family: var(--mono);
    font-size: 16px; font-weight: 600;
    color: var(--text-primary); letter-spacing: 0.02em;
}

.header-right { display: flex; align-items: center; gap: 24px; }

.conn-status {
    display: flex; align-items: center; gap: 9px;
    font-family: var(--mono); font-size: 13px; font-weight: 700;
    color: var(--text-secondary);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius); padding: 7px 16px;
}
.conn-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--neutral); transition: var(--transition); }
.conn-dot.online  { background: var(--fresh); box-shadow: 0 0 0 3px var(--fresh-bg); animation: pulse 2s infinite; }
.conn-dot.offline { background: var(--rotten); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.45} }

.last-update-wrap { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.last-update-label { font-family: var(--mono); font-size: 10px; letter-spacing: .15em; color: var(--text-muted); text-transform: uppercase; }
.last-update-text  { font-family: var(--mono); font-size: 12px; color: var(--text-secondary); font-weight: 500; }

/* ── LAYOUT ── */
.main-wrap {
    max-width: 1500px; margin: 0 auto;
    padding: 28px 36px;
    display: grid; grid-template-columns: 320px 1fr; gap: 22px;
    align-items: start; position: relative; z-index: 1;
}
.left-col  { display: flex; flex-direction: column; gap: 18px; }
.right-col { display: flex; flex-direction: column; gap: 18px; }

/* ── CARDS ── */
.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition), border-color var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--border-lit); }

.card-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 20px; border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
}
.card-label { font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .16em; color: var(--text-secondary); text-transform: uppercase; }
.card-tag   { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }
.live-tag   { display: flex; align-items: center; gap: 6px; color: var(--fresh); font-weight: 700; }
.live-dot   { width: 8px; height: 8px; border-radius: 50%; background: var(--fresh); animation: pulse 1.5s infinite; }
.card-body  { padding: 20px; }

/* ── PH RING ── */
.ph-main { display: flex; flex-direction: column; align-items: center; padding: 26px 20px 14px; }
.ph-ring { position: relative; width: 172px; height: 172px; margin-bottom: 18px; }
.ph-ring svg { width: 172px; height: 172px; transform: rotate(-90deg); filter: drop-shadow(0 2px 8px rgba(29,78,216,.1)); }
.ph-ring .track { fill: none; stroke: var(--border); stroke-width: 8; }
.ph-ring .fill  { fill: none; stroke-width: 8; stroke-linecap: round; stroke-dasharray: 314.16; stroke-dashoffset: 314.16; transition: stroke-dashoffset 1.2s cubic-bezier(.4,0,.2,1), stroke .5s; }
.ph-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.ph-label-top { font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .2em; color: var(--text-muted); text-transform: uppercase; margin-bottom: 2px; }
.ph-number { font-family: var(--mono); font-size: 48px; font-weight: 700; color: var(--text-primary); line-height: 1; letter-spacing: -.02em; transition: color .5s; }
.ph-scale  { font-family: var(--mono); font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.status-pill { font-family: var(--mono); font-size: 14px; font-weight: 700; letter-spacing: .2em; padding: 8px 28px; border-radius: 3px; border: 2px solid; margin-bottom: 10px; transition: all .5s; text-transform: uppercase; }
.status-pill.fresh   { color: var(--fresh);   background: var(--fresh-bg);   border-color: var(--fresh-border); }
.status-pill.caution { color: var(--caution); background: var(--caution-bg); border-color: var(--caution-border); }
.status-pill.rotten  { color: var(--rotten);  background: var(--rotten-bg);  border-color: var(--rotten-border); }
.status-pill.unknown { color: var(--neutral); background: var(--bg-elevated); border-color: var(--border); }

.meaning-text { font-size: 13px; color: var(--text-dim); text-align: center; margin-bottom: 18px; }

/* pH scale bar */
.ph-scale-bar { padding: 0 20px 20px; }
.ph-bar-track { position: relative; height: 10px; display: flex; overflow: hidden; margin-bottom: 6px; border: 1px solid var(--border); border-radius: 5px; }
.ph-bar-segment { flex: 1; }
.ph-bar-segment.acid    { background: linear-gradient(90deg,#fca5a5,#fde68a); }
.ph-bar-segment.neutral { background: linear-gradient(90deg,#fde68a,#86efac); flex: 0.5; }
.ph-bar-segment.base    { background: linear-gradient(90deg,#86efac,#93c5fd); }
.ph-bar-indicator { position: absolute; top: -3px; width: 16px; height: 16px; border-radius: 50%; background: var(--text-primary); border: 2.5px solid #fff; box-shadow: 0 1px 5px rgba(0,0,0,.25); transform: translateX(-50%); transition: left 1.2s cubic-bezier(.4,0,.2,1); }
.ph-bar-labels { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 10px; color: var(--text-muted); margin-bottom: 3px; }
.ph-bar-text-labels { display: flex; font-family: var(--mono); font-size: 10px; color: var(--text-dim); }

/* ── RGB ── */
.rgb-swatch-row { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.rgb-swatch { width: 52px; height: 52px; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: inset 0 1px 3px rgba(0,0,0,.08); transition: background .6s ease; flex-shrink: 0; }
.rgb-swatch-label { font-family: var(--mono); font-size: 11px; color: var(--text-dim); letter-spacing: .08em; text-transform: uppercase; }
.rgb-swatch-note  { font-family: var(--mono); font-size: 10px; color: var(--text-muted); margin-top: 3px; }

.rgb-grid { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.rgb-channel { display: flex; flex-direction: column; gap: 5px; }
.ch-top { display: flex; align-items: center; justify-content: space-between; }
.rgb-channel .ch-label { font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.rgb-channel.ch-r .ch-label { color: #dc2626; }
.rgb-channel.ch-g .ch-label { color: #16a34a; }
.rgb-channel.ch-b .ch-label { color: var(--accent); }
.rgb-channel .ch-bar { height: 6px; background: var(--bg-elevated); border-radius: 3px; border: 1px solid var(--border); overflow: hidden; }
.rgb-channel .ch-fill { height: 100%; border-radius: 3px; transition: width .8s cubic-bezier(.4,0,.2,1); }
.ch-r .ch-fill { background: linear-gradient(90deg,#fca5a5,#dc2626); }
.ch-g .ch-fill { background: linear-gradient(90deg,#86efac,#16a34a); }
.ch-b .ch-fill { background: linear-gradient(90deg,#93c5fd,#1d4ed8); }
.rgb-channel .ch-val { font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--text-primary); }

.meta-row { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-top: 1px solid var(--border); }
.meta-row .meta-key { color: var(--text-secondary); font-family: var(--mono); font-size: 11px; }
.meta-row .meta-val { color: var(--text-primary);   font-family: var(--mono); font-size: 11px; font-weight: 500; }

/* ── STATS ── */
.stats-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.stat-cell {
    background: var(--bg-card); padding: 20px 20px 18px;
    border-radius: var(--radius-lg); border: 1px solid var(--border);
    box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
}
.stat-cell::before { content:''; position:absolute; top:0;left:0;right:0; height:4px; background:var(--border); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.stat-cell.stat-fresh::before   { background: var(--fresh); }
.stat-cell.stat-caution::before { background: var(--caution); }
.stat-cell.stat-rotten::before  { background: var(--rotten); }
.stat-cell .sc-label { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--text-dim); text-transform: uppercase; margin-bottom: 10px; display: block; }
.stat-cell .sc-val   { font-family: var(--mono); font-size: 42px; font-weight: 700; color: var(--text-primary); line-height: 1; }
.stat-cell.stat-fresh .sc-val   { color: var(--fresh); }
.stat-cell.stat-caution .sc-val { color: var(--caution); }
.stat-cell.stat-rotten .sc-val  { color: var(--rotten); }

/* ── CHART ── */
.chart-wrap { padding: 16px 20px 20px; height: 280px; position: relative; }
.chart-legend { display: flex; align-items: center; gap: 14px; }
.legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.legend-dot.fresh   { background: var(--fresh); }
.legend-dot.caution { background: var(--caution); }
.legend-dot.rotten  { background: var(--rotten); }
.legend-text { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }

/* ── TOOLBAR ── */
.toolbar { display: flex; gap: 8px; padding: 12px 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; background: var(--bg-elevated); }
.btn {
    font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: .06em;
    padding: 8px 16px; border: 1px solid var(--border-lit); border-radius: var(--radius);
    cursor: pointer; background: var(--bg-card); color: var(--text-secondary);
    transition: all var(--transition); white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }
.btn-active { background: var(--fresh-bg); border-color: var(--fresh-border); color: var(--fresh); }
.btn.btn-danger:hover { border-color: var(--rotten-border); color: var(--rotten); background: var(--rotten-bg); }
.btn.btn-export:hover { border-color: var(--caution-border); color: var(--caution); background: var(--caution-bg); }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
    font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
    color: var(--text-secondary); padding: 13px 14px; text-align: left;
    border-bottom: 2px solid var(--border); background: var(--bg-elevated); white-space: nowrap; font-weight: 700;
}
.th-check { width: 40px; text-align: center; }

tbody td {
    padding: 11px 14px; border-bottom: 1px solid var(--border);
    font-family: var(--mono); font-size: 13px; color: var(--text-secondary); vertical-align: middle;
}
tbody tr { cursor: pointer; transition: background var(--transition); }
tbody tr:hover td { background: #eef2ff; }
tbody tr.row-selected td { background: #e8f0fe; }
tbody tr.row-highlighted td { background: #fff9e6; }
tbody tr:last-child td { border-bottom: none; }

.td-check { text-align: center; }
.td-no    { font-weight: 700; color: var(--text-dim); }
.td-ph    { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.td-swatch { display: inline-flex; align-items: center; gap: 7px; }
.td-swatch-dot { width: 14px; height: 14px; border-radius: 3px; border: 1px solid var(--border); display: inline-block; flex-shrink: 0; }

.badge { display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .1em; padding: 4px 10px; border-radius: 3px; border: 1.5px solid; text-transform: uppercase; }
.badge.fresh   { color: var(--fresh);   background: var(--fresh-bg);   border-color: var(--fresh-border); }
.badge.caution { color: var(--caution); background: var(--caution-bg); border-color: var(--caution-border); }
.badge.rotten  { color: var(--rotten);  background: var(--rotten-bg);  border-color: var(--rotten-border); }
.badge.unknown { color: var(--neutral); background: transparent; border-color: var(--border); }

.empty-state { text-align: center; padding: 52px; color: var(--text-muted); font-family: var(--mono); font-size: 13px; }

/* ── MODAL ── */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(15,23,42,0.45);
    display: flex; align-items: center; justify-content: center;
    z-index: 999; backdrop-filter: blur(4px);
}
.modal-box {
    background: #fff; border-radius: 8px; width: 420px; max-width: 90vw;
    box-shadow: 0 20px 60px rgba(15,23,42,0.2);
    border: 1px solid var(--border);
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-title { font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: .1em; color: var(--text-primary); text-transform: uppercase; }
.modal-close { background: none; border: none; font-size: 16px; cursor: pointer; color: var(--text-dim); padding: 2px 6px; border-radius: 3px; }
.modal-close:hover { background: var(--bg-elevated); color: var(--rotten); }
.modal-body { padding: 20px; }
.modal-msg  { font-family: var(--sans); font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--border); }

/* ── FOOTER ── */
.footer { 
    border-top: 1px solid var(--border); 
    background: var(--bg-card); 
    position: relative; 
    z-index: 1; 
}

.footer-inner { 
    max-width: 1500px; 
    margin: 0 auto; 
    padding: 15px 36px; 
    display: flex; 
    justify-content: center; /* Membuat footer-center ke tengah */
    align-items: center;
    position: relative;
}

/* Container untuk teks dua baris di tengah */
.footer-center {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-text { 
    font-family: var(--mono); 
    font-size: 12px; 
    color: var(--text-muted); 
    line-height: 1.4;
}

/* Memposisikan waktu update di pojok kanan secara absolut */
#footerTime {
    position: absolute;
    right: 36px;
    font-size: 11px;
}

/* Responsif untuk layar kecil */
@media (max-width: 640px) {
    .footer-inner { 
        flex-direction: column; 
        gap: 10px; 
    }
    #footerTime {
        position: static; /* Kembali ke posisi normal di layar HP */
    }
}
/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-elevated); }
::-webkit-scrollbar-thumb { background: var(--border-lit); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
    .main-wrap { grid-template-columns: 1fr; padding: 20px; }
    /* Membagi Current Reading dan RGB berdampingan di layar medium */
    .left-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .stats-row { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 800px) {
    /* Jika layar mulai sempit (tablet kecil), tumpuk Current Reading & RGB atas-bawah */
    .left-col { grid-template-columns: 1fr; } 
}

@media (max-width: 640px) {
    .main-wrap { padding: 10px; gap: 12px; }

    /* --- Merapikan Header --- */
    .header-inner { 
        padding: 12px; 
        flex-direction: column; 
        align-items: flex-start; 
        height: auto; 
        gap: 12px; 
    }
    .header-right { 
        width: 100%; 
        justify-content: space-between; 
    }

    /* --- Memaksimalkan Ruang Card --- */
    .card-header, .card-body, .ph-main, .ph-scale-bar, .chart-wrap {
        padding: 12px;
    }
    .stat-cell { padding: 16px 12px; }
    .stat-cell .sc-val { font-size: 30px; }

    /* --- Merapikan Tombol Aksi --- */
    .toolbar { 
        padding: 12px; 
        flex-direction: column; 
        align-items: stretch; /* Membentangkan tombol memenuhi layar */
        gap: 8px;
    }
    .toolbar .btn {
        width: 100%;
        padding: 12px; /* Ukuran yang pas untuk ditekan jempol */
    }

    /* --- Mengatasi Tabel Berantakan --- */
    .table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch; /* Scroll mulus di perangkat iOS */
        padding-bottom: 8px;
    }
    table {
        min-width: 650px; /* Paksa lebar tabel, memicu scroll horizontal jika layar HP kurang lebar */
    }
    th, td {
        white-space: nowrap; /* Mencegah teks patah/turun ke baris baru */
        padding: 10px 12px;
    }

    /* --- Merapikan Footer --- */
    .footer-inner { 
        flex-direction: column; 
        gap: 8px; 
        padding: 16px; 
    }
    #footerTime {
        position: static; /* Mengembalikan jam ke susunan normal (tidak absolut di pojok) */
        margin-top: 4px;
    }
}