/* --- GLOBAL RESETS --- */
html {
  margin: 0 !important;
  padding: 0 !important;
  background-color: #1e293b !important;
  overscroll-behavior-y: none;
}

/* --- APP SHELL & CORE STYLES --- */
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #0f172a;
  color: #f8fafc;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-bottom: 60px;
}

#webview-warning-banner {
  display: none;
  background: #dc2626;
  color: #ffffff;
  padding: 10px 12px;
  font-size: 0.75rem;
  line-height: 1.4;
  font-weight: 600;
  text-align: center;
  border-bottom: 2px solid #991b1b;
  position: sticky;
  top: 0;
  z-index: 10001;
}

#a2hs-prompt-banner {
  display: none;
  background: #1e293b;
  border: 1px solid #38bdf8;
  color: #f8fafc;
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 10px;
  font-size: 0.72rem;
  line-height: 1.4;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

/* --- APP HEADER --- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 12px;
  background: #0b1329;
  border-bottom: 1px solid #1e293b;
  box-sizing: border-box;
  gap: 8px;
}

/* Left Brand Lockup */
.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.header-logo {
  height: 38px;
  width: 38px;
  border-radius: 50%;
  flex-shrink: 0;
}

.header-titles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.header-main-title {
  margin: 0;
  font-size: clamp(0.78rem, 3.2vw, 0.98rem);
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1.2;
}

.header-subtitle {
  font-size: 0.68rem;
  color: #94a3b8;
  white-space: nowrap;
  margin-top: 1px;
  line-height: 1.2;
}

/* Right Vertical Column Stack */
.header-actions-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  flex-shrink: 0;
}

/* Row 1: Compact Language Selector */
.header-lang-select {
  flex: 1;
  height: 22px;
  line-height: 20px;
  box-sizing: border-box;
  padding: 0 14px 0 5px;
  background-color: #1e293b;
  color: #38bdf8;
  border: 1px solid #334155;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 800;
  cursor: pointer;
  outline: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 24 24' fill='none' stroke='%2338bdf8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 3px center;
}

.header-lang-select:hover {
  border-color: #0284c7;
}

/* Row 2 & 3: Uniform Action Buttons */
.btn-specs,
.btn-emergency {
  width: 112px;
  height: 22px;
  line-height: 20px;
  padding: 0 4px;
  border: none;
  border-radius: 5px;
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  white-space: nowrap;
  box-sizing: border-box;
  outline: none;
  transition: background-color 0.15s ease;
}

.btn-specs {
  background-color: #0284c7;
  color: #ffffff;
}

.btn-specs:hover {
  background-color: #0369a1;
}

.btn-emergency {
  background-color: #dc2626;
  color: #ffffff;
  font-weight: 800;
}

.btn-emergency:hover {
  background-color: #b91c1c;
}

/* MAIN CONTENT */
main#app-content { 
  flex: 1; 
  padding: 8px; 
  max-width: 800px; 
  margin: 0 auto; 
  width: 100%; 
  overflow-x: hidden; 
}

/* TAB & SUB-TAB NAVIGATION */
.tab-content { display: none; }
.tab-content.active { display: block; }

.sub-tab-content { display: none; }
.sub-tab-content.active { display: block; }

.rule-nested-content { display: none; }
.rule-nested-content.active { display: block; }

.segmented-control {
  display: flex;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 3px;
  margin-bottom: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.sub-tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: #94a3b8;
  padding: 8px 6px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}
.sub-tab-btn.active { background: #38bdf8; color: #0f172a; }

.nested-segmented-control {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 6px;
  margin-bottom: 12px;
}
.nested-tab-btn {
  color: #94a3b8;
  font-size: 0.7rem;
  padding: 6px 4px;
}
.nested-tab-btn.active {
  background: #4673a6;
  color: #ffffff;
}

nav.tab-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: #1e293b;
  border-top: 1px solid #334155;
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 9999;
}
.tab-btn {
  background: none; border: none; color: #94a3b8;
  display: flex; flex-direction: column; align-items: center;
  font-size: 0.65rem; font-weight: 600; cursor: pointer; padding: 4px; width: 20%;
}
.tab-btn .tab-icon { font-size: 1.1rem; margin-bottom: 1px; }
.tab-btn.active { color: #38bdf8; }

footer.app-footer {
  background: #0f172a; padding: 12px; text-align: center;
  border-top: 1px solid #1e293b; font-size: 0.75rem; color: #94a3b8; margin-top: 16px;
}
footer.app-footer a { color: #38bdf8; text-decoration: none; margin: 0 4px; }

/* CARDS & FORMS */
.tool-card {
  background: #ffffff; color: #333; border-radius: 10px; padding: 12px; 
  margin-bottom: 12px; border: 1px solid #334155; box-shadow: 0 4px 15px rgba(0,0,0,0.15);
  width: 100%; box-sizing: border-box;
}
.tool-card h2, .tool-card h3 { margin: 0 0 6px 0; color: #4673a6; font-size: 1.1rem; text-align: center; }

/* TAB 1: DECISION MATRIX */
#risk-calculator { 
  font-family: inherit; border: 1px solid #334155; border-radius: 10px; 
  padding: 10px; background: #ffffff; color: #333; box-shadow: 0 4px 15px rgba(0,0,0,0.15); 
}
.risk-header { text-align: center; color: #2c3e50; margin-bottom: 8px; }
.risk-header h2 { margin: 0; color: #4673a6; font-size: 1.05rem; }
.risk-section { margin-bottom: 6px; padding-bottom: 6px; border-bottom: 1px dashed #eee; }
.risk-section-title { font-size: 0.7rem; color: #84b480; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 3px; display: block; }
.risk-row { margin-bottom: 4px; }
.risk-label { font-weight: 600; color: #34495e; margin-bottom: 2px; font-size: 0.75rem; display: block; }
.risk-options { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; }
button.risk-btn { 
  width: 100%; padding: 4px 2px; border: 1px solid #e0e0e0 !important; 
  background-color: #f8f9fa !important; color: #333 !important; cursor: pointer; 
  border-radius: 5px; display: flex; flex-direction: column; align-items: center; justify-content: center; 
  text-align: center; min-height: 38px; margin: 0 !important;
}
.btn-title { display: block; font-weight: 700; font-size: 0.7rem; margin-bottom: 1px; line-height: 1; }
.btn-desc { display: block; font-size: 0.6rem; color: #7f8c8d; line-height: 1; }
button.risk-btn.selected { transform: translateY(-1px); border-color: transparent !important; }
button.risk-btn.selected[data-val="0"] { background-color: #84b480 !important; } 
button.risk-btn.selected[data-val="0"] * { color: white !important; }
button.risk-btn.selected[data-val="1"] { background-color: #f4c542 !important; } 
button.risk-btn.selected[data-val="1"] .btn-title { color: #2c3e50 !important; }
button.risk-btn.selected[data-val="1"] .btn-desc { color: #444 !important; }
button.risk-btn.selected[data-val="2"] { background-color: #d9534f !important; } 
button.risk-btn.selected[data-val="2"] * { color: white !important; }
.mitigation-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; width: 100%; }
.mitigation-btn { padding: 6px 4px; border: 1px dashed #4673a6; background: #f0f7ff; cursor: pointer; border-radius: 5px; text-align: center; font-size: 0.7rem; color: #4673a6; }
.mitigation-btn.active { background: #4673a6; color: white; border-style: solid; }
.mitigation-btn.disabled { opacity: 0.5; background: #eee; border-color: #ccc; color: #999; }
#risk-result { margin-top: 8px; padding: 8px; text-align: center; border-radius: 6px; background: #f1f3f5; color: #7f8c8d; border: 1px dashed #d1d9e6; }
#verdict-title { font-size: 1.05rem; font-weight: 800; display: block; margin-bottom: 2px; text-transform: uppercase; }
.warning-note { display: block; margin-top: 4px; padding-top: 4px; border-top: 1px solid rgba(255,255,255,0.3); font-size: 0.7rem; font-style: italic; }

/* CHECKLIST & BRIEFING STYLES */
.checklist-item { 
  display: flex; 
  align-items: flex-start; 
  gap: 8px; 
  padding: 8px; 
  background: #f8fbff; 
  border: 1px solid #d1d9e6; 
  border-radius: 6px; 
  margin-bottom: 6px; 
  font-size: 0.8rem; 
  color: #333;
  word-break: break-word;
  overflow-wrap: break-word;
}
.checklist-item label { flex: 1; min-width: 0; }
.checklist-item input[type="checkbox"] { width: 18px; height: 18px; margin-top: 1px; accent-color: #4673a6; flex-shrink: 0; }

.ref-table { width: 100%; border-collapse: collapse; font-size: 0.75rem; margin-top: 6px; }
.ref-table th { background: #f0f7ff; color: #4673a6; text-align: left; padding: 6px 8px; border-bottom: 2px solid #d1d9e6; font-weight: bold; }
.ref-table td { padding: 6px 8px; border-bottom: 1px solid #e2e8f0; color: #333; vertical-align: top; }

/* EMERGENCY CARDS */
.emergency-card { 
  background: #fff5f5; 
  border: 1px solid #feb2b2; 
  border-radius: 8px; 
  padding: 14px 16px; 
  margin-bottom: 16px; 
  color: #2d3748; 
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.emergency-card h4 { color: #c53030; font-size: 1rem; margin: 0 0 8px 0; font-weight: 800; border-bottom: 1px solid #fecaca; padding-bottom: 4px; }
.emergency-card p { margin: 0; font-size: 0.85rem; line-height: 1.6; color: #1a202c; }

/* TAB 2: ANCHOR & TIDES */
.input-group { margin-bottom: 12px; }
.input-label { display: block; font-weight: 700; color: #34495e; margin-bottom: 4px; font-size: 0.8rem; }
.input-row { display: flex; gap: 8px; align-items: center; }
.range-wrap { flex-grow: 1; }
input[type=range] { width: 100%; cursor: pointer; accent-color: #4673a6; }
.number-display { width: 55px; padding: 4px; border: 1px solid #d1d9e6; border-radius: 5px; text-align: center; font-weight: bold; color: #4673a6; background: #f8f9fa; font-size: 0.85rem; }
.cond-options { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; }
button.cond-btn { width: 100%; padding: 6px 2px; border: 1px solid #e0e0e0; background-color: #f8f9fa; color: #333; cursor: pointer; border-radius: 5px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; min-height: 42px; }
.cond-title { font-weight: 700; font-size: 0.7rem; margin-bottom: 1px; }
.cond-desc { font-size: 0.6rem; color: #7f8c8d; }
button.cond-btn.selected { border-color: transparent; color: white; }
button.cond-btn.selected[data-scope="3"] { background-color: #84b480; }
button.cond-btn.selected[data-scope="5"] { background-color: #f4c542; }
button.cond-btn.selected[data-scope="7"] { background-color: #d9534f; }
button.cond-btn.selected * { color: white !important; }
#anchor-result { margin-top: 12px; padding: 12px; background: #4673a6; color: white; border-radius: 6px; text-align: center; }
.res-big { font-size: 1.8rem; font-weight: 800; line-height: 1; }
.res-label { font-size: 0.75rem; opacity: 0.9; text-transform: uppercase; letter-spacing: 0.5px; }
.res-detail { font-size: 0.7rem; margin-top: 4px; opacity: 0.85; font-style: italic; }

.anchor-guide-box { background: #f8fbff; border-left: 4px solid #4673a6; padding: 10px; margin-top: 10px; border-radius: 0 6px 6px 0; font-size: 0.75rem; color: #334155; }
.anchor-guide-box h4 { margin: 0 0 6px 0; color: #4673a6; font-size: 0.85rem; }
.anchor-guide-box ol { margin: 0; padding-left: 18px; }
.anchor-guide-box li { margin-bottom: 4px; line-height: 1.3; }

.tide-input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.tide-input-group label { font-size: 0.75rem; font-weight: bold; margin-bottom: 2px; color: #555; display: block; }
.tide-input-group input { width: 100%; padding: 6px; border: 1px solid #ccc; border-radius: 5px; font-size: 0.9rem; background: #fcfcfc; }
#tide-results { background: #f0f0f7; border-radius: 6px; padding: 8px 12px; }
.tide-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid #d1d9e6; font-size: 0.8rem; color: #333; }
.tide-row:last-child { border-bottom: none; }
.tide-hour { font-weight: bold; color: #4673a6; }
.tide-summary { margin-top: 8px; font-size: 0.8rem; text-align: center; padding-top: 6px; border-top: 1px dashed #4673a6; color: #333; }

/* TAB 3: ENGINE & CHECKS */
#wobble-widget { font-family: inherit; border: 2px solid #4673a6; border-radius: 10px; padding: 12px; background: #ffffff; color: #333; box-shadow: 0 4px 15px rgba(0,0,0,0.15); }
.wobble-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; border-bottom: 1px solid #d1d9e6; padding-bottom: 6px; }
.wobble-header h3 { margin: 0; color: #4673a6; font-size: 1rem; }
.wobble-icon { background: #4673a6; color: white; border-radius: 50%; width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.85rem; flex-shrink: 0; }
.wobble-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.wobble-item { background: #f8fbff; border: 1px solid #d1d9e6; border-radius: 6px; padding: 8px 4px; text-align: center; }
.wobble-letter { display: block; font-size: 1.2rem; font-weight: 900; color: #4673a6; }
.wobble-title { display: block; font-weight: 700; font-size: 0.7rem; color: #2c3e50; text-transform: uppercase; margin-bottom: 2px; }
.wobble-desc { display: block; font-size: 0.6rem; color: #7f8c8d; line-height: 1.1; }

/* TAB 4: PLANNING & CHART */
.nav-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 8px; width: 100%; }
.nav-grp { display: flex; flex-direction: column; gap: 2px; width: 100%; min-width: 0; }
.nav-grp label { font-size: 0.65rem; color: #555; font-weight: bold; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-grp input, .nav-grp select { padding: 6px 4px; border: 1px solid #ccc; border-radius: 4px; font-size: 0.8rem; background: #fff; width: 100%; box-sizing: border-box; }
.nav-calc-btn { width: 100%; background: #4673a6; color: white; border: none; padding: 10px; border-radius: 6px; font-weight: bold; cursor: pointer; font-size: 0.9rem; margin-top: 6px; }
.nav-res-row { display: flex; justify-content: space-between; padding: 5px 0; border-bottom: 1px solid #eee; font-size: 0.8rem; align-items: center; }
.nav-res-val { font-weight: bold; color: #2c5282; font-family: monospace; font-size: 0.95rem; }

.aw-chart-container { border: 1px solid #334155; border-radius: 10px; overflow: hidden; background: #fff; color: #333; }
.chart-header { padding: 8px 10px; background: #f8fbff; border-bottom: 1px solid #d0e0f0; display: flex; justify-content: space-between; align-items: center; }
#aw-med-map { width: 100%; height: 55vh; min-height: 350px; max-height: 520px; z-index: 1; }
.nav-warning-banner { background: #fff3cd; color: #856404; border-bottom: 1px solid #ffeeba; padding: 6px 10px; font-size: 0.68rem; font-weight: bold; text-align: center; }
.gps-btn { background: #4673a6; color: white; border: none; padding: 5px 10px; border-radius: 5px; font-weight: bold; font-size: 0.7rem; cursor: pointer; }

.polyline-measure-unicorn-node {
  width: 24px !important; height: 24px !important; margin-left: -12px !important; margin-top: -12px !important;
  border: 2px solid #ffffff !important; box-shadow: 0 0 6px rgba(0, 0, 0, 0.5) !important;
}
.polyline-measure-tooltip { font-size: 0.75rem !important; padding: 4px 8px !important; border-radius: 4px !important; }

/* TAB 5: DECK LOGBOOK & YACHT DETAILS */
.vessel-summary-banner {
  background: #0f172a; color: #38bdf8; border: 1px solid #334155; border-radius: 8px;
  padding: 10px 14px; margin-bottom: 12px; font-size: 0.85rem; line-height: 1.6; box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.vessel-summary-banner strong { color: #f8fafc; font-weight: 700; }
.vessel-summary-item { display: inline-block; margin-right: 12px; }

.trip-meta-box { background: #f0f7ff; border: 1px solid #d0e0f0; border-radius: 6px; padding: 8px; margin-bottom: 10px; }
.trip-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

.log-input-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px; margin-bottom: 8px; width: 100%; }
.log-grp { display: flex; flex-direction: column; gap: 2px; min-width: 0; width: 100%; }
.log-grp label { font-size: 0.65rem; color: #555; font-weight: bold; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.log-grp input, .log-grp textarea, .log-grp select { 
  padding: 6px; border: 1px solid #ccc; border-radius: 5px; font-size: 0.8rem; background: #fcfcfc; 
  width: 100%; box-sizing: border-box; min-width: 0; 
}

.log-grp-2col { grid-column: span 2; }
.log-grp-full { grid-column: span 3; }

.log-add-btn { width: 100%; background: #10b981; color: white; border: none; padding: 8px; border-radius: 6px; font-weight: bold; font-size: 0.85rem; cursor: pointer; }
.pdf-gen-btn { width: 100%; background: #38bdf8; color: #0f172a; border: none; padding: 10px; border-radius: 6px; font-weight: 800; font-size: 0.9rem; cursor: pointer; margin-top: 8px; box-shadow: 0 2px 8px rgba(56, 189, 248, 0.3); }

#log-entries-list {
  max-height: 320px; overflow-y: auto; -webkit-overflow-scrolling: touch;
  border: 1px solid #cbd5e1; border-radius: 8px; padding: 6px; background: #f1f5f9; margin-top: 8px; margin-bottom: 12px;
}

.log-entry-card { background: #ffffff; border: 1px solid #cbd5e1; border-radius: 6px; padding: 8px; margin-bottom: 6px; font-size: 0.75rem; color: #333; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.log-entry-header { display: flex; justify-content: space-between; font-weight: bold; color: #4673a6; border-bottom: 1px solid #e2e8f0; padding-bottom: 3px; margin-bottom: 4px; }

.header-about-btn {
  flex: 1.2;
  height: 22px;
  line-height: 20px;
  padding: 0 4px;
  background-color: #1e293b;
  color: #38bdf8;
  border: 1px solid #334155;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 700;
  cursor: pointer;
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  white-space: nowrap;
}
.header-about-btn:hover {
  border-color: #0284c7;
}