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

:root {
  --bg: #0a0a12;
  --bg2: #111120;
  --card: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --card-hover: rgba(255,255,255,0.07);
  --primary: #6366f1;
  --primary-glow: rgba(99,102,241,0.35);
  --secondary: #8b5cf6;
  --accent: #a78bfa;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --text: #f1f1ff;
  --text2: #a1a1c1;
  --text3: #6b6b8a;
  --ups: #fbbf24;
  --ups-glow: rgba(251,191,36,0.25);
  --fedex: #7c3aed;
  --fedex-glow: rgba(124,58,237,0.25);
  --radius: 14px;
  --radius-sm: 8px;
  --font: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(80px);
  background: rgba(30,30,60,0.95); border: 1px solid var(--primary);
  color: var(--accent); font-size: 0.85rem; font-weight: 600;
  padding: 0.6rem 1.25rem; border-radius: 100px;
  backdrop-filter: blur(12px); z-index: 9999;
  transition: transform 0.3s ease, opacity 0.3s ease; opacity: 0;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ===== Ambient Orbs ===== */
.bg-orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.18; animation: drift 12s ease-in-out infinite alternate; }
.orb-1 { width: 500px; height: 500px; background: radial-gradient(circle, #6366f1, transparent 70%); top: -100px; left: -100px; }
.orb-2 { width: 400px; height: 400px; background: radial-gradient(circle, #8b5cf6, transparent 70%); bottom: -100px; right: -50px; animation-delay: -4s; }
.orb-3 { width: 300px; height: 300px; background: radial-gradient(circle, #f59e0b, transparent 70%); top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: -8s; }
@keyframes drift {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(30px,20px) scale(1.08); }
}

/* ===== Container ===== */
.container { max-width: 920px; margin: 0 auto; padding: 2rem 1.5rem 4rem; position: relative; z-index: 1; }

/* ===== Header ===== */
.header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
.header-logo { display: flex; align-items: center; gap: 0.85rem; }
.header-title {
  font-size: 1.35rem; font-weight: 800;
  background: linear-gradient(135deg, #e0e0ff 0%, #a78bfa 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1.2;
}
.header-sub { font-size: 0.78rem; color: var(--text3); font-weight: 500; margin-top: 2px; }
.header-right { display: flex; align-items: center; gap: 0.75rem; }

.rate-badge {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 100px; padding: 0.4rem 1rem;
  font-size: 0.85rem; transition: border-color 0.2s, background 0.2s;
}
.rate-badge:hover { border-color: var(--primary); background: var(--card-hover); }
.rate-label { color: var(--text3); }
.rate-value { color: var(--accent); font-weight: 700; }
.rate-edit-btn { background: none; border: none; color: var(--text3); cursor: pointer; font-size: 0.9rem; padding: 0; transition: color 0.2s; }
.rate-edit-btn:hover { color: var(--accent); }

/* ===== Rate Editor ===== */
.rate-editor { padding: 1rem 1.5rem; margin-bottom: 1rem; }
.rate-editor-row { display: flex; gap: 0.75rem; margin-top: 0.5rem; }
.rate-editor-row .form-input { flex: 1; }

/* ===== Config Toggle ===== */
.btn-config {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text2); font-family: var(--font); font-size: 0.82rem; font-weight: 600;
  padding: 0.5rem 1rem; border-radius: var(--radius-sm); cursor: pointer;
  margin-bottom: 0.75rem; transition: all 0.2s;
}
.btn-config:hover { border-color: var(--primary); color: var(--text); }

/* ===== Config Panel ===== */
.config-panel { margin-bottom: 1.5rem; padding: 1.5rem; animation: fadeSlide 0.3s ease; }
.config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 1rem; }
@media (max-width: 600px) { .config-grid { grid-template-columns: 1fr; } }
.config-col { display: flex; flex-direction: column; gap: 0.5rem; }
.config-carrier-label {
  font-size: 0.82rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 0.5rem; padding: 0.25rem 0.75rem; border-radius: 100px; display: inline-block; width: fit-content;
}
.ups-label { background: rgba(251,191,36,0.15); color: var(--ups); border: 1px solid rgba(251,191,36,0.3); }
.fdx-label { background: rgba(99,102,241,0.15); color: var(--accent); border: 1px solid rgba(99,102,241,0.3); }
.config-actions { display: flex; gap: 0.75rem; padding-top: 0.75rem; border-top: 1px solid var(--card-border); }

/* ===== Card ===== */
.card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  padding: 1.5rem; transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover { border-color: rgba(99,102,241,0.2); }

/* ===== Carrier Tabs ===== */
.carrier-tabs { display: flex; gap: 0.75rem; margin-bottom: 1.75rem; flex-wrap: wrap; }
.carrier-tab {
  flex: 1; min-width: 110px;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); color: var(--text2);
  font-family: var(--font); font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: all 0.25s;
}
.carrier-tab:hover { border-color: var(--primary); color: var(--text); }
.carrier-tab.active {
  background: linear-gradient(135deg, rgba(99,102,241,0.25), rgba(139,92,246,0.15));
  border-color: var(--primary); color: var(--text);
  box-shadow: 0 0 20px var(--primary-glow);
}
.carrier-logo { height: 20px; object-fit: contain; }

/* ===== Panel ===== */
.panel { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-items: start; }
@media (max-width: 640px) { .panel { grid-template-columns: 1fr; } }

/* ===== Info Card ===== */
.panel-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 1rem; color: var(--accent); }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; margin-bottom: 1rem; }
.info-item {
  background: rgba(255,255,255,0.03); border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem; display: flex; flex-direction: column; gap: 0.2rem;
}
.info-label { font-size: 0.7rem; color: var(--text3); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; }
.info-value { font-size: 0.88rem; font-weight: 700; color: var(--text); }

.formula-box { background: rgba(0,0,0,0.3); border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.06); padding: 0.85rem 1rem; }
.formula-title { font-size: 0.8rem; font-weight: 600; color: var(--text2); margin-bottom: 0.5rem; }
.formula-box code { font-family: 'Courier New', monospace; font-size: 0.78rem; color: #a5f3fc; white-space: pre-wrap; line-height: 1.7; display: block; }

/* ===== Calc Card ===== */
.calc-title { font-size: 1rem; font-weight: 700; margin-bottom: 1.25rem; color: var(--text); }

/* ===== Form ===== */
.form-group { margin-bottom: 0.85rem; }
.form-label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--text2); margin-bottom: 0.35rem; text-transform: uppercase; letter-spacing: 0.04em; }
.label-optional { font-weight: 400; color: var(--text3); text-transform: none; letter-spacing: 0; font-size: 0.7rem; }
.form-hint { font-size: 0.71rem; color: var(--text3); margin-top: 0.3rem; font-style: italic; line-height: 1.4; }

/* Badges */
.badge-primary {
  display: inline-block; padding: 0.1rem 0.5rem; border-radius: 100px;
  background: rgba(99,102,241,0.2); border: 1px solid rgba(99,102,241,0.35);
  color: var(--accent); font-size: 0.62rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em; vertical-align: middle; margin-left: 0.35rem;
}
.badge-warning {
  display: inline-block; padding: 0.1rem 0.5rem; border-radius: 100px;
  background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3);
  color: var(--warning); font-size: 0.62rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em; vertical-align: middle; margin-left: 0.35rem;
}

.input-wrapper { position: relative; display: flex; align-items: center; }
.input-prefix {
  position: absolute; left: 0.85rem; color: var(--text3);
  font-size: 0.85rem; font-weight: 600; pointer-events: none; z-index: 1;
}
.form-input {
  width: 100%; padding: 0.6rem 0.85rem;
  background: rgba(0,0,0,0.35); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font); font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s; outline: none;
}
.form-input.with-prefix { padding-left: 2.2rem; }
.form-input::placeholder { color: var(--text3); }
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-input::-webkit-inner-spin-button,
.form-input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }

/* ===== Buttons ===== */
.btn {
  padding: 0.65rem 1.25rem; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 0.9rem; font-weight: 700;
  cursor: pointer; border: none; transition: all 0.2s; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff; box-shadow: 0 4px 15px var(--primary-glow);
}
.btn-primary:hover { filter: brightness(1.12); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: rgba(255,255,255,0.05); border: 1px solid var(--card-border);
  color: var(--text2);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--text); }
.full-width { width: 100%; margin-top: 0.25rem; }

/* ===== Result Box ===== */
.result-box {
  margin-top: 1.25rem; background: rgba(0,0,0,0.25);
  border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden; animation: fadeSlide 0.35s ease;
}
@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.result-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.55rem 1rem; border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.85rem; color: var(--text2);
}
.result-row:last-child { border-bottom: none; }
.result-row span:last-child { font-weight: 600; color: var(--text); font-size: 0.88rem; }
.result-row.highlight { background: rgba(99,102,241,0.12); border-top: 1px solid rgba(99,102,241,0.25); }
.result-row.highlight span:last-child { color: var(--accent); font-size: 1.1rem; }
.tag-green { color: var(--success) !important; }
.note-row { background: rgba(245,158,11,0.07); }
.note-text { font-size: 0.75rem !important; color: #f59e0b; font-style: italic; font-weight: 400 !important; }

/* ===== Compare Panel ===== */
.compare-result { display: flex; align-items: stretch; gap: 1rem; margin-top: 1.25rem; animation: fadeSlide 0.35s ease; }
.compare-col { flex: 1; text-align: center; padding: 1.5rem 1rem; transition: box-shadow 0.25s; }
.compare-col.winner { border-color: var(--success); box-shadow: 0 0 20px rgba(16,185,129,0.2); }
.compare-vs { display: flex; align-items: center; font-weight: 800; font-size: 1rem; color: var(--text3); }
.cmp-carrier-name { font-size: 1.2rem; font-weight: 800; margin-bottom: 0.5rem; color: var(--accent); }
.cmp-fee { font-size: 1.5rem; font-weight: 800; color: var(--text); }
.cmp-fee-idr { font-size: 0.82rem; color: var(--text2); margin-top: 0.25rem; }
.cmp-note { margin-top: 0.75rem; font-size: 0.72rem; color: var(--text3); line-height: 1.4; }
.cmp-liab { margin-top: 0.4rem; font-size: 0.72rem; color: var(--success); font-style: italic; }
.winner-badge {
  display: inline-block; margin-top: 0.75rem; padding: 0.2rem 0.75rem;
  background: rgba(16,185,129,0.15); border: 1px solid rgba(16,185,129,0.3);
  border-radius: 100px; font-size: 0.72rem; font-weight: 700; color: var(--success);
}

/* ===== Table Section ===== */
.table-section { margin-top: 1.5rem; }
.table-scroll { overflow-x: auto; }
.comp-table { width: 100%; border-collapse: collapse; font-size: 0.83rem; }
.comp-table th {
  padding: 0.65rem 1rem; text-align: left;
  font-size: 0.72rem; font-weight: 700; color: var(--text3);
  text-transform: uppercase; letter-spacing: 0.05em;
  border-bottom: 1px solid var(--card-border);
}
.comp-table td { padding: 0.55rem 1rem; color: var(--text2); border-bottom: 1px solid rgba(255,255,255,0.03); }
.comp-table tr:last-child td { border-bottom: none; }
.comp-table tr:hover td { background: rgba(255,255,255,0.02); }
.td-ups { color: var(--ups); font-weight: 600; }
.td-fedex { color: var(--accent); font-weight: 600; }
.td-winner-ups { color: var(--ups); font-weight: 700; }
.td-winner-fedex { color: var(--accent); font-weight: 700; }
.td-same { color: var(--text3); font-style: italic; }

/* ===== Footer ===== */
.footer { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--card-border); font-size: 0.75rem; color: var(--text3); line-height: 1.6; }
.footer p + p { margin-top: 0.4rem; }
.footer-ref { font-style: italic; font-size: 0.7rem; }

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .header { flex-direction: column; align-items: flex-start; }
  .compare-result { flex-direction: column; }
  .compare-vs { justify-content: center; padding: 0.25rem 0; }
  .info-grid { grid-template-columns: 1fr; }
}