/* 01-base.css — design tokens, base layout, shared HUD primitives.
   DarkOrbit-homage palette: deep void, cyan shields, red hull/hostiles,
   green friendly/ore, gold credits, teal uridium. No purple, no pink. */

:root {
    --void: #02030a;
    --void-2: #060a16;
    --panel: rgba(8, 14, 26, .72);
    --line: rgba(120, 170, 230, .26);
    --hud: #cfe6ff;
    --hud-dim: #6c87b4;
    --steel: #9fb6d4;
    --cyan: #19c8ff;
    --blue: #2b6fff;
    --red: #ff3a3a;
    --orange: #ff8a1e;
    --green: #46e36a;
    --gold: #ffcb33;
    --uri: #28d9c0;
}

* { box-sizing: border-box; user-select: none; -webkit-user-select: none; -webkit-tap-highlight-color: transparent; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; overscroll-behavior: none; touch-action: none; background: var(--void); color: var(--hud); font-family: "Rajdhani", "Arial Narrow", Inter, Arial, sans-serif; }
canvas { display: block; }
button { appearance: none; -webkit-appearance: none; font: inherit; }
#game { position: fixed; inset: 0; background: var(--void); }

#vignette, #speedHaze, #damageFlash, #sunBloom, #grain { position: fixed; inset: 0; z-index: 3; pointer-events: none; }
#vignette { background: radial-gradient(ellipse at center, transparent 30%, rgba(0, 2, 10, .3) 72%, rgba(0, 1, 6, .85) 130%); }
#sunBloom { --sun-x: 17%; --sun-y: 24%; opacity: .6; background: radial-gradient(circle at var(--sun-x) var(--sun-y), rgba(180, 215, 255, .5), transparent 3%), radial-gradient(circle at var(--sun-x) var(--sun-y), rgba(80, 150, 255, .16), transparent 14%); mix-blend-mode: screen; will-change: opacity; transition: opacity .12s linear; }
#grain { opacity: .06; background-image: repeating-linear-gradient(0deg, rgba(255,255,255,.02) 0, rgba(255,255,255,.02) 1px, transparent 1px, transparent 4px), repeating-linear-gradient(90deg, rgba(0,0,0,.01) 0, rgba(0,0,0,.01) 1px, transparent 1px, transparent 5px); }
#speedHaze { opacity: 0; will-change: opacity; background: repeating-conic-gradient(from 0deg at 50% 50%, transparent 0 4deg, rgba(60,180,255,.06) 4.2deg 4.5deg, transparent 4.7deg 9deg); mask-image: radial-gradient(circle, transparent 0 22%, black 78%, transparent 100%); -webkit-mask-image: radial-gradient(circle, transparent 0 22%, black 78%, transparent 100%); transition: opacity .1s linear; }
#damageFlash { opacity: 0; background: radial-gradient(circle, transparent 14%, rgba(255, 50, 40, .7)); transition: opacity .12s; }

body[data-render-quality="low"] #speedHaze { display: none; }
body[data-render-quality="low"] #sunBloom { mix-blend-mode: normal; opacity: .24 !important; }
body[data-render-quality="low"] .targetMarker, body[data-render-quality="low"] #objectiveMarker { filter: none; }

#hud { position: fixed; inset: 0; z-index: 5; pointer-events: none; color: var(--hud); font-family: "SFMono-Regular", Consolas, monospace; font-variant-numeric: tabular-nums; letter-spacing: .06em; text-shadow: 0 1px 6px rgba(0,0,0,.6); }

/* Shared panel primitive — angled tech-frame corners. */
.hudPanel {
    position: absolute;
    padding: 0;
    background: var(--panel);
    border: 1px solid var(--line);
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}
.panelHeader {
    display: flex; align-items: center; justify-content: space-between;
    height: 22px; padding: 0 9px;
    border-bottom: 1px solid var(--line);
    color: var(--cyan);
    background: linear-gradient(90deg, rgba(25,200,255,.16), transparent 80%);
    font-size: 9px; font-weight: 900; letter-spacing: .18em;
}
.panelHeader span:last-child { color: var(--hud-dim); letter-spacing: .1em; }

.label { color: var(--hud-dim); font-size: 8px; font-weight: 700; letter-spacing: .16em; }
.value { color: var(--hud); font-family: "Arial Narrow", Impact, sans-serif; font-weight: 900; letter-spacing: -.02em; }
.unit { color: var(--hud-dim); font-size: 8px; font-weight: 800; }

.primaryReadout { display: grid; grid-template-columns: 1fr auto; align-items: end; padding: 7px 10px 8px; border-bottom: 1px solid var(--line); }
.primaryReadout .value { display: inline-block; font-size: 42px; font-style: italic; line-height: .82; color: var(--hud); }
.primaryReadout .unit { margin-left: 5px; color: var(--cyan); }
.machTag { align-self: center; padding: 4px 7px; border-left: 2px solid var(--gold); color: var(--gold); background: rgba(255,203,51,.1); font-size: 10px; font-weight: 900; }

.energyReadout { padding: 6px 10px; }
.energyLabel { display: flex; justify-content: space-between; margin-bottom: 4px; }
.energyLabel b { color: var(--hud); font-size: 9px; }
.thin { position: relative; height: 6px; overflow: hidden; background: rgba(120,170,230,.14); }
.thin > i { display: block; height: 100%; width: 0; background: var(--cyan); box-shadow: 0 0 6px var(--cyan); transition: width .12s linear; }
.thin.hp > i { background: var(--red); box-shadow: 0 0 6px var(--red); }
.thin.sh > i { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }

/* Combat status (top center) */
#combatStatus {
    position: absolute; left: 50%; top: max(16px, env(safe-area-inset-top));
    transform: translateX(-50%);
    display: flex; gap: 14px; padding: 7px 14px;
    color: var(--hud-dim);
    background: var(--panel);
    border: 1px solid var(--line);
    clip-path: polygon(9px 0, calc(100% - 9px) 0, 100% 50%, calc(100% - 9px) 100%, 9px 100%, 0 50%);
    font-size: 9px; font-weight: 800; white-space: nowrap;
}
#combatStatus b { color: var(--hud); font-size: 11px; }
#lockState { color: var(--red); }
#lockState.locked { color: var(--gold); }
#combatHint {
    position: absolute; left: 50%; top: max(54px, calc(env(safe-area-inset-top) + 38px));
    transform: translateX(-50%);
    padding: 4px 10px; color: var(--cyan);
    background: var(--panel); border: 1px solid var(--line);
    font-size: 9px; font-weight: 900; letter-spacing: .08em; white-space: nowrap;
}
#combatHint.locked { color: var(--gold); }

#flightState {
    position: absolute; left: 50%; bottom: max(20px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    padding: 6px 14px;
    color: var(--cyan);
    background: var(--panel);
    border: 1px solid var(--line);
    clip-path: polygon(9px 0, calc(100% - 9px) 0, 100% 100%, 0 100%);
    font-size: 10px; font-weight: 900; letter-spacing: .12em;
}
#flightState[data-mode="dock"] { color: var(--green); }
#flightState[data-mode="boost"] { color: var(--gold); }
#flightState[data-mode="danger"] { color: var(--red); }

/* Target markers */
#targetLayer { position: absolute; inset: 0; overflow: hidden; }
.targetMarker { --bearing: 0rad; position: absolute; left: 0; top: 0; width: 56px; height: 56px; color: var(--red); transform: translate3d(-50%,-50%,0); will-change: transform; filter: drop-shadow(0 2px 4px rgba(0,0,0,.8)); }
.targetBox { position: absolute; inset: 8px; border: 1px solid currentColor; clip-path: polygon(0 0,31% 0,31% 2px,69% 2px,69% 0,100% 0,100% 31%,calc(100% - 2px) 31%,calc(100% - 2px) 69%,100% 69%,100% 100%,69% 100%,69% calc(100% - 2px),31% calc(100% - 2px),31% 100%,0 100%,0 69%,2px 69%,2px 31%,0 31%); }
.targetArrow { display: none; position: absolute; left: 18px; top: 22px; width: 24px; height: 14px; background: currentColor; clip-path: polygon(0 0,100% 50%,0 100%,27% 50%); transform: rotate(var(--bearing)); }
.targetData { position: absolute; left: 50%; top: 50px; transform: translateX(-50%); padding: 2px 5px; color: currentColor; background: rgba(4,8,16,.8); font-size: 8px; font-weight: 900; letter-spacing: .06em; white-space: nowrap; }
.targetMarker.offscreen .targetBox { display: none; }
.targetMarker.offscreen .targetArrow { display: block; }
.targetMarker.offscreen .targetData { top: 42px; }
.targetMarker.locked { color: var(--gold); }
.targetMarker.locked .targetBox { inset: 4px; border-width: 2px; }

/* Center reticle */
#centerHud { position: absolute; left: 50%; top: 50%; width: 120px; height: 120px; transform: translate(-50%,-50%); }
#reticle { position: absolute; left: 50%; top: 50%; width: 64px; height: 64px; transform: translate(-50%,-50%); border: 1px solid rgba(207,230,255,.5); border-radius: 50%; }
#reticle::before { content: ""; position: absolute; inset: -8px; border: 1px solid rgba(25,200,255,.25); border-radius: 50%; }
#reticleDot { position: absolute; left: 50%; top: 50%; width: 5px; height: 5px; transform: translate(-50%,-50%); background: var(--cyan); border-radius: 50%; box-shadow: 0 0 8px var(--cyan); }
#warning { position: absolute; left: 50%; top: calc(50% + 78px); transform: translateX(-50%); padding: 6px 12px; color: #fff; font-size: 12px; font-weight: 900; letter-spacing: .14em; white-space: nowrap; background: var(--red); box-shadow: 0 4px 14px rgba(255,58,58,.4); opacity: 0; }
#warning.active { opacity: 1; }

/* Toast */
#toast { position: fixed; left: 50%; top: 22%; z-index: 8; transform: translate(-50%, 8px); padding: 8px 14px; color: #06121a; background: var(--gold); font: 900 clamp(12px, 1.8vw, 17px) Consolas, monospace; letter-spacing: .1em; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity .18s, transform .18s; clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%); }
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* Overlay / hangar card */
#overlay { position: fixed; inset: 0; z-index: 20; display: flex; align-items: center; padding: max(34px, env(safe-area-inset-top)) max(6vw, env(safe-area-inset-right)) max(34px, env(safe-area-inset-bottom)) max(7vw, env(safe-area-inset-left)); overflow: auto; background: linear-gradient(100deg, rgba(2,4,12,.98), rgba(4,8,20,.9) 42%, rgba(6,12,28,.4) 68%, transparent); }
#overlay.hidden { display: none; }
.card { position: relative; width: min(660px, 92vw); padding-left: 24px; text-align: left; border-left: 3px solid var(--cyan); }
.card::before { content: "OPEN-SECTOR COMBAT PROTOCOL"; display: block; margin-bottom: 22px; color: var(--green); font: 800 10px Consolas, monospace; letter-spacing: .24em; }
h1 { margin: 0; color: var(--hud); font-family: "Arial Narrow", Impact, sans-serif; font-size: clamp(52px, 9vw, 110px); font-style: italic; font-weight: 900; line-height: .76; letter-spacing: -.06em; text-transform: uppercase; text-shadow: 6px 7px 0 rgba(20,40,70,.7); }
h1 .titleSonic { color: var(--cyan); }
.subtitle { margin: 16px 0 20px; color: var(--gold); font: 800 11px Consolas, monospace; letter-spacing: .34em; }
#overlayText { max-width: 500px; margin: 0 0 22px; padding-left: 12px; border-left: 1px solid var(--line); color: rgba(207,230,255,.78); font-size: 13px; line-height: 1.6; }
.missionMenuTitle { color: var(--cyan); font: italic 900 17px "Arial Narrow", Impact, sans-serif; letter-spacing: .05em; }
.missionMenuSubtitle { margin: 2px 0 6px; color: var(--gold); font: 900 8px Consolas, monospace; letter-spacing: .14em; }
.controls { display: grid; grid-template-columns: repeat(3, minmax(110px,1fr)); gap: 0 16px; max-width: 540px; margin: 18px 0 26px; border-top: 1px solid var(--line); }
.control { min-height: 50px; padding: 10px 0 7px; border-bottom: 1px solid var(--line); color: var(--hud-dim); font: 10px Consolas, monospace; }
.control b { display: block; margin-bottom: 4px; color: var(--hud); font-size: 10px; }
.introLaunchRow { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
#startButton { min-width: 220px; padding: 15px 26px; border: 0; color: #04101a; background: linear-gradient(135deg, var(--gold), #ffe07a); font: 900 13px Consolas, monospace; letter-spacing: .18em; cursor: pointer; clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%); box-shadow: 6px 6px 0 rgba(43,111,255,.3); transition: transform .15s, box-shadow .15s; }
#startButton:hover { transform: translate(-2px,-2px); box-shadow: 9px 9px 0 rgba(43,111,255,.36); }
#hangarButton, #respawnButton { min-width: 200px; padding: 14px 20px; border: 1px solid var(--cyan); color: var(--cyan); background: var(--panel); font: 900 11px Consolas, monospace; letter-spacing: .14em; cursor: pointer; clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%); }
#hangarButton:hover, #respawnButton:hover { color: #04101a; background: var(--cyan); }
#hangarButton { display: none; }
#respawnButton { display: none; }
#overlay:not(.intro) #hangarButton { display: block; }
#overlay.continue-available #respawnButton { display: block; }
.introOnly { display: none; }
#overlay.intro .introOnly { display: block; }

/* Upgrade + ship bays */
.upgradeBayHeader { margin-bottom: 8px; color: var(--cyan); font: 900 8px Consolas, monospace; letter-spacing: .18em; }
.upgradeGrid, .shipGrid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; max-width: 560px; }
.upgradeGrid button, .shipGrid button { padding: 8px 9px; border: 1px solid var(--line); color: var(--hud); background: rgba(10,18,34,.7); font: 800 8px Consolas, monospace; text-align: left; cursor: pointer; transition: border-color .15s, background .15s; }
.upgradeGrid button:hover { border-color: var(--cyan); background: rgba(18,40,70,.8); }
.upgradeGrid button b, .upgradeGrid button span { display: block; }
.upgradeGrid button b { color: var(--cyan); margin-bottom: 4px; }
.upgradeGrid button span { color: var(--gold); }
#upgradeBay { max-width: 560px; margin: 10px 0 14px; padding: 9px 0; border-block: 1px solid var(--line); }
#shipBay { max-width: 560px; margin: 10px 0 12px; }
.shipGrid button { display: flex; flex-direction: column; gap: 3px; min-height: 84px; }
.shipGrid button b { color: var(--hud); font-size: 11px; letter-spacing: .05em; }
.shipGrid button em { color: var(--cyan); font-style: normal; font-size: 8px; letter-spacing: .1em; }
.shipGrid button span { color: var(--gold); font-size: 8px; }
.shipGrid button small { color: var(--hud-dim); font-size: 7px; line-height: 1.3; }
.shipGrid button.selected { border-color: var(--gold); background: linear-gradient(135deg, rgba(255,203,51,.22), rgba(25,200,255,.1)); box-shadow: 0 0 0 1px var(--gold) inset; }
.shipGrid button:hover { border-color: var(--cyan); }