:root {
    --bg-color: #0f172a; --card-bg: #1e293b; --accent-color: #38bdf8;
    --btn-primary: #2563eb; --btn-success: #16a34a; --text-color: #f8fafc;
    --text-muted: #94a3b8; --danger: #ef4444; --sync: #8b5cf6;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: sans-serif; -webkit-tap-highlight-color: transparent;}
body { background-color: var(--bg-color); color: var(--text-color); min-height: 100vh; display: flex; flex-direction: column; }
.app-header { display: flex; background-color: var(--card-bg); border-bottom: 2px solid #334155; position: sticky; top: 0; z-index: 100; }
.tab-btn { flex: 1; padding: 16px; background: none; border: none; color: var(--text-muted); font-size: 0.95rem; font-weight: bold; cursor: pointer; text-align: center; }
.tab-btn.active { color: var(--accent-color); border-bottom: 3px solid var(--accent-color); background-color: rgba(56,189,248,0.05); }
.view-container { display: none; padding: 20px; flex: 1; }
.view-container.active { display: block; }
.card-step { display: none; background-color: var(--card-bg); padding: 24px; border-radius: 16px; margin-top: 10px; }
.card-step.active { display: block; }
h2 { color: var(--accent-color); margin-bottom: 15px; }
.input-group { margin-bottom: 20px; }
.input-group label { display: block; margin-bottom: 8px; font-weight: bold; }
.input-group input { width: 100%; padding: 14px; border-radius: 10px; border: 1px solid #475569; background-color: #0f172a; color: #fff; font-size: 1.1rem; text-align: left; direction: ltr; }
button { font-weight: bold; border: none; border-radius: 12px; cursor: pointer; }
.btn-primary { width: 100%; padding: 16px; background-color: var(--btn-primary); color: #fff; }
.btn-gps { width: 100%; padding: 20px; background-color: #d97706; color: #fff; font-size: 1.2rem; }
.btn-camera { display: block; width: 100%; padding: 18px; background-color: #0284c7; color: white; text-align: center; border-radius: 12px; font-weight: bold; }
.actions-row { display: flex; gap: 10px; margin-top: 15px; }
.btn-secondary { flex: 1; padding: 14px; background-color: #475569; color: white; }
.btn-success { flex: 1; padding: 14px; background-color: var(--btn-success); color: white; }
.status-box { margin: 15px 0; padding: 12px; background-color: #0f172a; border-radius: 8px; font-size: 0.95rem; color: #e2e8f0; text-align: center; border: 1px solid #334155; }
#photo-preview { width: 100%; max-height: 200px; object-fit: cover; border-radius: 10px; margin-bottom: 15px; }
.history-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.btn-sync { padding: 10px 15px; background-color: var(--sync); color: white; border-radius: 8px; }
.history-item { background-color: var(--card-bg); padding: 18px; border-radius: 12px; margin-bottom: 15px; border-left: 5px solid var(--accent-color); }
.history-details { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.btn-direction { width: 100%; padding: 12px; background-color: var(--btn-primary); color: white; }
.synced-badge { display: inline-block; padding: 4px 8px; background: var(--btn-success); color: white; border-radius: 4px; font-size: 0.7rem; float: right;}
.navigation-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: #020617; z-index: 1000; display: flex; flex-direction: column; align-items: center; justify-content: space-between; padding: 25px; }
.nav-header { width: 100%; display: flex; justify-content: space-between; }
.btn-close { padding: 8px 16px; background-color: var(--danger); color: white; }
.compass-wrapper { width: 260px; height: 260px; border-radius: 50%; border: 6px solid var(--accent-color); display: flex; align-items: center; justify-content: center; background: radial-gradient(circle, #1e293b 0%, #0f172a 100%); margin: auto 0; }
.arrow { font-size: 110px; color: #f59e0b; transition: transform 0.1s ease-out; }
.nav-info { width: 100%; display: flex; gap: 15px; }
.info-card { flex: 1; background-color: var(--card-bg); padding: 15px; border-radius: 12px; text-align: center; }
.info-card .label { display: block; font-size: 0.85rem; color: var(--text-muted); }
.info-card .value { font-size: 1.4rem; font-weight: bold; color: var(--accent-color); }
.hidden { display: none !important; }