/* ============================================================
   SISTEMA SOLARE — Mappa Astronomica Interattiva
   style.css
   Design: astronomico, dark, professionale
   Fonte dati: NASA/NSSDC Planetary Fact Sheet
   ============================================================ */

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --gold:        #C9A84C;
    --gold-dim:    rgba(201,168,76,0.4);
    --gold-faint:  rgba(201,168,76,0.12);
    --white:       #E8E0D0;
    --white-dim:   rgba(232,224,208,0.55);
    --white-faint: rgba(232,224,208,0.12);
    --bg-deep:     #00000A;
    --bg-panel:    #04040F;
    --bg-card:     #080814;
    --bg-hover:    #0F0F1E;
    --border:      rgba(255,255,255,0.07);
    --border-gold: rgba(201,168,76,0.25);
    --text-primary:   #E8E0D0;
    --text-secondary: rgba(232,224,208,0.6);
    --text-dim:       rgba(232,224,208,0.3);
    --font-main:  'Georgia', 'Times New Roman', serif;
    --font-mono:  'Courier New', 'Courier', monospace;
    --radius:     4px;
}

html, body {
    height: 100%;
    background: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 14px;
    line-height: 1.6;
    overflow: hidden;
}

/* ---------- SCHERMATA DI CARICAMENTO ---------- */
#loading-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s ease;
}

#loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-inner {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.loading-symbol {
    font-size: 64px;
    color: var(--gold);
    animation: pulse-sun 2s ease-in-out infinite;
    text-shadow: 0 0 40px rgba(201,168,76,0.5);
}

@keyframes pulse-sun {
    0%, 100% { transform: scale(1);    opacity: 0.9; }
    50%       { transform: scale(1.08); opacity: 1;   }
}

.loading-title {
    font-size: 22px;
    letter-spacing: 8px;
    color: var(--gold);
    font-weight: 400;
}

.loading-subtitle {
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.loading-bar-wrap {
    width: 220px;
    height: 1px;
    background: var(--white-faint);
    border-radius: 1px;
    overflow: hidden;
}

.loading-bar {
    height: 100%;
    background: var(--gold);
    width: 0%;
    transition: width 0.1s linear;
}

.loading-source {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--text-dim);
    font-style: italic;
}

/* ---------- APP LAYOUT ---------- */
#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

#app.hidden { display: none; }
.hidden { display: none !important; }

/* ---------- HEADER ---------- */
#main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: var(--bg-panel);
    border-bottom: 0.5px solid var(--border);
    flex-shrink: 0;
    gap: 20px;
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-symbol {
    font-size: 26px;
    color: var(--gold);
    text-shadow: 0 0 20px rgba(201,168,76,0.4);
    line-height: 1;
}

.header-titles h1 {
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
}

.header-subtitle {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--text-dim);
    text-transform: uppercase;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-label {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
    white-space: nowrap;
}

.btn-group {
    display: flex;
}

.btn-mode {
    padding: 4px 12px;
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-family: var(--font-main);
    background: transparent;
    color: var(--text-secondary);
    border: 0.5px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-mode:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.btn-mode:last-child  { border-radius: 0 var(--radius) var(--radius) 0; border-left: none; }

.btn-mode.active,
.btn-mode:hover {
    background: var(--gold-faint);
    color: var(--gold);
    border-color: var(--border-gold);
}

.btn-toggle {
    padding: 4px 12px;
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-family: var(--font-main);
    background: transparent;
    color: var(--text-secondary);
    border: 0.5px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-toggle.active {
    background: var(--gold-faint);
    color: var(--gold);
    border-color: var(--border-gold);
}

/* Speed slider */
#speed-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 80px;
    height: 2px;
    background: var(--border);
    border-radius: 1px;
    outline: none;
    cursor: pointer;
}

#speed-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gold);
    cursor: pointer;
}

#speed-val {
    font-size: 11px;
    color: var(--gold);
    font-family: var(--font-mono);
    min-width: 22px;
}

/* ---------- CANVAS AREA ---------- */
#canvas-container {
    position: relative;
    flex: 0 0 340px;
    overflow: hidden;
    background: #00000D;
    border-bottom: 0.5px solid var(--border);
}

#canvas-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#bg-canvas    { z-index: 1; }
#orbit-canvas { z-index: 2; }
#main-canvas  { z-index: 3; cursor: crosshair; }

/* Tooltip */
#tooltip {
    position: absolute;
    z-index: 10;
    background: rgba(4,4,15,0.94);
    border: 0.5px solid var(--border-gold);
    padding: 8px 14px;
    pointer-events: none;
    white-space: nowrap;
    backdrop-filter: blur(4px);
    border-radius: var(--radius);
}

.tooltip-name {
    font-size: 13px;
    color: var(--gold);
    letter-spacing: 1px;
}

.tooltip-type {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-top: 2px;
}

.tooltip-dist {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
    font-family: var(--font-mono);
}

/* Legenda scala */
#scale-legend {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 8;
}

.legend-label {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--text-dim);
    text-transform: uppercase;
    text-align: center;
}

/* HUD velocità luce */
#lightspeed-hud {
    position: absolute;
    top: 10px;
    right: 14px;
    z-index: 8;
    text-align: right;
}

.hud-label {
    font-size: 9px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--text-dim);
}

.hud-value {
    font-size: 14px;
    color: var(--gold);
    font-family: var(--font-mono);
    letter-spacing: 1px;
}

/* ---------- TABS BAR ---------- */
#tabs-bar {
    display: flex;
    align-items: stretch;
    background: var(--bg-panel);
    border-bottom: 0.5px solid var(--border);
    flex-shrink: 0;
    overflow: hidden;
}

#planet-tabs {
    display: flex;
    overflow-x: auto;
    scrollbar-width: none;
    flex: 1;
}

#planet-tabs::-webkit-scrollbar { display: none; }

.planet-tab {
    flex: 0 0 auto;
    padding: 8px 16px;
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-family: var(--font-main);
    color: var(--text-dim);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    border-right: 0.5px solid var(--border);
    white-space: nowrap;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 5px;
}

.planet-tab:hover { color: var(--text-secondary); background: var(--white-faint); }

.planet-tab.active {
    color: var(--gold);
    border-bottom-color: var(--gold);
    background: var(--gold-faint);
}

.tab-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

#tab-extras {
    display: flex;
    border-left: 0.5px solid var(--border);
}

.tab-extra-btn {
    padding: 8px 14px;
    font-size: 10px;
    letter-spacing: 1.5px;
    font-family: var(--font-main);
    background: transparent;
    color: var(--text-dim);
    border: none;
    border-right: 0.5px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-extra-btn:hover {
    color: var(--gold);
    background: var(--gold-faint);
}

/* ---------- DETAIL PANEL ---------- */
#detail-panel {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-panel);
    scrollbar-width: thin;
    scrollbar-color: var(--border-gold) transparent;
}

#detail-panel::-webkit-scrollbar { width: 3px; }
#detail-panel::-webkit-scrollbar-thumb { background: var(--border-gold); }

/* Hero del pianeta */
.detail-hero {
    display: flex;
    gap: 20px;
    padding: 16px 20px;
    border-bottom: 0.5px solid var(--border);
    align-items: flex-start;
}

.detail-symbol-wrap {
    position: relative;
    flex-shrink: 0;
}

.detail-planet-visual {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    flex-shrink: 0;
}

.detail-symbol {
    position: absolute;
    bottom: -4px;
    right: -4px;
    font-size: 18px;
    line-height: 1;
    filter: drop-shadow(0 0 4px rgba(0,0,0,0.8));
}

.detail-hero-info { flex: 1; min-width: 0; }

.detail-type-badge {
    display: inline-block;
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
    border: 0.5px solid var(--border-gold);
    padding: 2px 8px;
    border-radius: 2px;
    margin-bottom: 6px;
}

.detail-name {
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 1px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.detail-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 4px;
}

.detail-extra {
    font-size: 11px;
    color: var(--gold);
    font-style: italic;
    opacity: 0.8;
}

/* Griglia statistiche */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1px;
    background: var(--border);
    border-top: 0.5px solid var(--border);
    border-bottom: 0.5px solid var(--border);
}

.stat-card {
    background: var(--bg-card);
    padding: 10px 14px;
    transition: background 0.2s;
}

.stat-card:hover { background: var(--bg-hover); }

.stat-label {
    font-size: 9px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 13px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
}

.stat-value.highlighted {
    color: var(--gold);
    font-size: 14px;
}

.stat-unit {
    font-size: 10px;
    color: var(--text-dim);
    margin-top: 1px;
}

/* Titoli sezioni */
.section-title {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 10px 20px 6px;
    border-top: 0.5px solid var(--border);
}

/* Atmosfera */
#atmosphere-section {
    padding: 8px 20px 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.atm-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.atm-label {
    font-size: 11px;
    color: var(--text-secondary);
    width: 100px;
    flex-shrink: 0;
    font-family: var(--font-mono);
}

.atm-track {
    flex: 1;
    height: 3px;
    background: var(--white-faint);
    border-radius: 2px;
    overflow: hidden;
}

.atm-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.8s ease;
}

.atm-pct {
    font-size: 11px;
    color: var(--text-dim);
    width: 40px;
    text-align: right;
    font-family: var(--font-mono);
}

.atm-none {
    font-size: 11px;
    color: var(--text-dim);
    font-style: italic;
}

/* Lune */
#moons-section {
    padding: 8px 20px 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.moon-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    background: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: 2px;
    font-size: 11px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.moon-chip:hover {
    border-color: var(--border-gold);
    color: var(--gold);
}

.moon-chip .moon-radius {
    font-size: 9px;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

/* Missioni */
#missions-section {
    padding: 8px 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.mission-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.mission-year {
    font-size: 10px;
    color: var(--gold);
    font-family: var(--font-mono);
    flex-shrink: 0;
    width: 34px;
}

.mission-name {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 400;
}

.mission-desc {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Fonte dati */
.detail-source {
    padding: 8px 20px 12px;
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--text-dim);
    border-top: 0.5px solid var(--border);
    font-style: italic;
}

/* ---------- VISTA CONFRONTO ---------- */
#view-confronto,
#view-stelle {
    padding: 0 20px 16px;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
}

.compare-table th {
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 6px 10px;
    text-align: left;
    border-bottom: 0.5px solid var(--border);
    font-weight: 400;
    white-space: nowrap;
}

.compare-table td {
    padding: 6px 10px;
    color: var(--text-secondary);
    border-bottom: 0.5px solid rgba(255,255,255,0.03);
    font-family: var(--font-mono);
    font-size: 11px;
    white-space: nowrap;
}

.compare-table tr:hover td { background: var(--white-faint); }

.compare-table td:first-child {
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 12px;
}

.compare-table td.highlight-cell { color: var(--gold); }

/* ---------- ANIMAZIONI ENTRY ---------- */
@keyframes fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fade-in 0.35s ease forwards; }

/* ---------- SCROLLBAR GLOBALE ---------- */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-gold); border-radius: 2px; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 700px) {
    #main-header { padding: 8px 12px; gap: 10px; }
    .header-controls { gap: 12px; }
    #canvas-container { flex: 0 0 260px; }
    .detail-hero { flex-direction: column; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}