/* ===== CSS Variables ===== */
:root {
  --bg: #080c10;
  --bg2: #0d1117;
  --bg3: #161b22;
  --border: #21262d;
  --border-glow: #00e5ff33;
  --text: #c9d1d9;
  --text-muted: #6e7681;
  --text-bright: #f0f6fc;
  --accent: #00e5ff;
  --accent2: #7c3aed;
  --accent3: #22c55e;
  --accent-warn: #f59e0b;
  --accent-danger: #ef4444;
  --glow: 0 0 20px #00e5ff44, 0 0 40px #00e5ff22;
  --glow-sm: 0 0 10px #00e5ff33;
  --radius: 12px;
  --radius-sm: 8px;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Syne', sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

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

/* Animated grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* Glow orbs */
body::after {
  content: '';
  position: fixed;
  top: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,229,255,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ===== Layout ===== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ===== Header ===== */
header {
  border-bottom: 1px solid var(--border);
  background: rgba(8,12,16,0.9);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  max-width: 1140px;
  margin: 0 auto;
  flex-wrap: wrap; /* Tambahan untuk jaga-jaga kalau menu panjang */
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: #000;
}

.logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: -0.5px;
}

.logo-text span { color: var(--accent); }

nav { display: flex; gap: 4px; flex-wrap: wrap; }

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.2s;
  font-family: var(--font-mono);
}

nav a:hover { color: var(--accent); background: rgba(0,229,255,0.08); }

/* ===== Hero ===== */
.hero {
  padding: 72px 20px 48px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.25);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow-sm);
  animation: pulse 2s ease-in-out infinite;
}

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

.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  color: var(--text-bright);
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 16px;
}

.hero h1 .hl {
  color: var(--accent);
  text-shadow: var(--glow-sm);
}

.hero p {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* Tool nav pills */
.tool-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 0;
}

.pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.pill:hover, .pill.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,229,255,0.08);
  box-shadow: var(--glow-sm);
}

/* ===== Ad Banner ===== */
.ad-banner {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  margin: 24px 0;
}

/* ===== Tools Grid ===== */
.tools-section {
  padding: 40px 0 60px;
  position: relative;
  z-index: 1;
}

.section-title {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.tool-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  transition: border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.tool-card:hover { border-color: rgba(0,229,255,0.3); }
.tool-card:hover::before { opacity: 1; }

.tool-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.tool-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.tool-icon.blue { background: rgba(0,229,255,0.1); border: 1px solid rgba(0,229,255,0.2); }
.tool-icon.purple { background: rgba(124,58,237,0.15); border: 1px solid rgba(124,58,237,0.3); }
.tool-icon.green { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.2); }
.tool-icon.amber { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.2); }
.tool-icon.red { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); }

.tool-meta h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.tool-meta p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  font-family: var(--font-mono);
}

/* ===== Form Elements ===== */
.input-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 160px;
}

label {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

input[type="text"], input[type="number"], select {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  outline: none;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.1);
}

select option { background: var(--bg3); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.btn:hover {
  background: #33ecff;
  box-shadow: var(--glow);
  transform: translateY(-1px);
}

.btn:active { transform: translateY(0); }

.btn.secondary {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,229,255,0.08);
  box-shadow: none;
}

.btn.danger {
  background: transparent;
  color: var(--accent-danger);
  border: 1px solid rgba(239,68,68,0.3);
}

.btn.danger:hover {
  background: rgba(239,68,68,0.1);
  box-shadow: none;
}

/* ===== Result Box ===== */
.result-box {
  margin-top: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: none;
}

.result-box.show { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 1px;
}

.result-status {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent3);
  box-shadow: 0 0 6px var(--accent3);
}

.dot.loading { background: var(--accent-warn); box-shadow: 0 0 6px var(--accent-warn); animation: pulse 1s infinite; }
.dot.error { background: var(--accent-danger); box-shadow: 0 0 6px var(--accent-danger); }

.result-body { padding: 16px; }

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.info-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.info-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}

.info-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  word-break: break-all;
}

.info-value.normal { color: var(--text-bright); }
.info-value.green { color: var(--accent3); }
.info-value.red { color: var(--accent-danger); }
.info-value.amber { color: var(--accent-warn); }
.info-value.purple { color: var(--accent2); }

/* Map placeholder */
.map-placeholder {
  margin-top: 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* Port scanner */
.port-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.port-tag {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
}

.port-tag:hover { border-color: var(--accent); color: var(--accent); }

.port-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}

.port-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.port-num { font-weight: 700; color: var(--text-bright); }
.port-name { color: var(--text-muted); font-size: 10px; }
.port-status { font-weight: 700; font-size: 11px; }
.port-open { color: var(--accent3); }
.port-closed { color: var(--accent-danger); }
.port-pending { color: var(--accent-warn); }

/* Ping */
.ping-bar-wrap {
  margin-top: 12px;
}

.ping-entry {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
}

.ping-entry:last-child { border-bottom: none; }
.ping-seq { color: var(--text-muted); width: 28px; }
.ping-bar-track {
  flex: 1;
  height: 6px;
  background: var(--bg3);
  border-radius: 3px;
  overflow: hidden;
}
.ping-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent3);
  transition: width 0.3s;
}
.ping-bar-fill.warn { background: var(--accent-warn); }
.ping-bar-fill.bad { background: var(--accent-danger); }
.ping-ms { min-width: 60px; text-align: right; color: var(--text-bright); font-weight: 600; }

/* Subnet */
.subnet-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13px;
}

.subnet-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

.subnet-table td:first-child {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  width: 45%;
}

.subnet-table td:last-child {
  color: var(--accent);
  font-weight: 600;
}

.subnet-table tr:last-child td { border-bottom: none; }

/* MAC */
.mac-result {
  text-align: center;
  padding: 20px;
}

.mac-vendor-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.mac-vendor-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.mac-oui {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 2px;
}

/* Loader */
.loader {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}

.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Error */
.error-box {
  padding: 16px;
  background: rgba(239,68,68,0.06);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-danger);
  font-family: var(--font-mono);
  font-size: 13px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

/* Copy button */
.copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.2s;
}

.copy-btn:hover { color: var(--accent); background: rgba(0,229,255,0.08); }

/* ===== Footer ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 20px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  position: relative;
  z-index: 1;
}

/* ===== SPEEDOMETER UI ===== */
.speedometer-container {
  position: relative;
  width: 180px;
  height: 180px;
  margin: 0 auto; /* Tengahin speedometer-nya */
}
.speed-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.speed-ring-bg {
  stroke: var(--bg3);
}
.speed-ring-fill {
  stroke: var(--accent);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.1s linear, stroke 0.3s ease;
}
.speed-center {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

footer a { color: var(--accent); text-decoration: none; }

/* Smooth scroll anchor offset */
[id] { scroll-margin-top: 80px; }

/* =========================================================
   ===== RESPONSIVE MOBILE OPTIMIZATION (THE MAGIC!) ===== 
   ========================================================= */

/* Untuk Tablet & Layar Menengah */
@media (max-width: 768px) {
  .hero { padding: 48px 16px 32px; }
  .hero p { font-size: 15px; }
  
  .header-inner { 
    flex-direction: column; 
    gap: 12px; 
  }
  
  /* Biar nav nggak ilang, tapi nyusun rapi di tengah */
  nav { 
    display: flex; 
    justify-content: center;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 8px; /* Ruang scroll dikit */
  }
  
  nav::-webkit-scrollbar { display: none; } /* Sembunyiin scrollbar biar clean */

  .tools-section { padding: 30px 0 40px; }
  .tool-card { padding: 24px; }
  
  /* Bikin info grid lebih fleksibel */
  .info-grid { 
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); 
  }
}

/* Untuk HP (Layar Kecil) */
@media (max-width: 480px) {
  .header-inner { padding: 12px 16px; }
  
  .hero h1 { font-size: clamp(32px, 8vw, 48px); } /* Font title dikecilin dikit */
  
  .tool-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .tool-icon {
    width: 38px;
    height: 38px;
    font-size: 18px;
  }

  /* Form dan tombol dibikin tumpuk biar gampang dipencet jempol */
  .input-row { flex-direction: column; gap: 12px; }
  .input-group { min-width: 100%; }
  .btn { width: 100%; justify-content: center; padding: 12px; }
  
  /* Info Grid dibikin 1 baris kalau layarnya beneran kekecilan */
  .info-grid { grid-template-columns: 1fr; }
  
  /* Tabel yang biasanya pecah di HP, kita ubah jadi block layout */
  .subnet-table, .subnet-table tbody, .subnet-table tr, .subnet-table td {
    display: block;
    width: 100%;
  }
  
  .subnet-table tr {
    margin-bottom: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px;
    background: var(--bg2);
  }
  
  .subnet-table td {
    padding: 6px 8px;
    border-bottom: none;
    text-align: left;
  }
  
  .subnet-table td:first-child { 
    font-size: 10px; 
    padding-bottom: 2px;
  }
  
  .subnet-table td:last-child {
    font-size: 14px;
  }

  /* Scale down speedometer biar nggak mentok kiri-kanan */
  .speedometer-container {
    width: 140px;
    height: 140px;
  }
  
  /* Atur port results biar aman di layar kecil */
  .port-results {
    grid-template-columns: 1fr 1fr;
  }
}