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| /* Upgrade system: the space popup, the nudge dock and the sidebar fuel gauge. | |
| Strict palette: black, #217cff, white. */ | |
| /* ---------- Popup ---------- */ | |
| .upg-backdrop { | |
| position: fixed; | |
| inset: 0; | |
| z-index: 60; | |
| display: grid; | |
| place-items: center; | |
| padding: 16px; | |
| overflow: auto; | |
| background: rgba(0, 0, 0, 0.8); | |
| backdrop-filter: blur(6px); | |
| animation: upg-fade 0.25s ease both; | |
| } | |
| .upg { | |
| position: relative; | |
| width: min(540px, 100%); | |
| max-height: calc(100vh - 32px); | |
| overflow: auto; | |
| display: grid; | |
| gap: 18px; | |
| padding: 0 22px 20px; | |
| background: var(--black); | |
| border-color: var(--blue-35); | |
| box-shadow: var(--glow-lg), 0 0 0 1px var(--blue-10) inset; | |
| animation: upg-rise 0.45s cubic-bezier(0.2, 0.8, 0.2, 1) both; | |
| } | |
| .upg:focus { | |
| outline: none; | |
| } | |
| .upg-wide { | |
| width: min(800px, 100%); | |
| } | |
| .upg-close { | |
| position: absolute; | |
| top: 12px; | |
| right: 12px; | |
| z-index: 3; | |
| background: rgba(0, 0, 0, 0.5); | |
| } | |
| .upg-head { | |
| display: grid; | |
| gap: 8px; | |
| text-align: center; | |
| justify-items: center; | |
| } | |
| .upg-head h2 { | |
| font-family: var(--font-display); | |
| font-size: clamp(1.5rem, 4vw, 2.1rem); | |
| line-height: 1.1; | |
| margin: 0; | |
| } | |
| .upg-head > p.muted { | |
| max-width: 52ch; | |
| margin: 0; | |
| } | |
| /* Scene: drifting stars and a ringed planet */ | |
| .upg-scene { | |
| position: relative; | |
| height: 190px; | |
| margin: 0 -22px; | |
| overflow: hidden; | |
| background: | |
| radial-gradient(60% 90% at 50% 100%, var(--blue-20), transparent 70%), | |
| radial-gradient(40% 60% at 50% 60%, var(--blue-10), transparent 70%), | |
| var(--black); | |
| border-bottom: 1px solid var(--line); | |
| mask-image: linear-gradient(to bottom, #000 70%, transparent); | |
| } | |
| .upg-stars { | |
| position: absolute; | |
| inset: -50% 0 0; | |
| background-repeat: repeat; | |
| animation: upg-drift linear infinite; | |
| } | |
| .upg-stars.l1 { | |
| background-image: | |
| radial-gradient(1px 1px at 12px 18px, rgba(255, 255, 255, 0.7), transparent), | |
| radial-gradient(1px 1px at 70px 90px, rgba(255, 255, 255, 0.5), transparent), | |
| radial-gradient(1px 1px at 130px 40px, rgba(255, 255, 255, 0.6), transparent); | |
| background-size: 160px 120px; | |
| animation-duration: 40s; | |
| } | |
| .upg-stars.l2 { | |
| background-image: | |
| radial-gradient(1.5px 1.5px at 40px 60px, rgba(255, 255, 255, 0.85), transparent), | |
| radial-gradient(1.5px 1.5px at 190px 20px, rgba(33, 124, 255, 0.9), transparent); | |
| background-size: 240px 150px; | |
| animation-duration: 24s; | |
| } | |
| .upg-stars.l3 { | |
| background-image: | |
| radial-gradient(2px 2px at 80px 30px, #fff, transparent), | |
| radial-gradient(2px 2px at 260px 110px, rgba(33, 124, 255, 1), transparent); | |
| background-size: 340px 180px; | |
| animation-duration: 14s; | |
| } | |
| .upg-planet-wrap { | |
| position: absolute; | |
| left: 50%; | |
| top: 54%; | |
| width: 170px; | |
| height: 170px; | |
| transform: translate(-50%, -50%); | |
| } | |
| .upg-planet { | |
| width: 100%; | |
| height: 100%; | |
| filter: drop-shadow(0 0 24px var(--blue-35)); | |
| animation: upg-bob 6s ease-in-out infinite; | |
| } | |
| .upg-ring { | |
| fill: none; | |
| stroke: rgba(255, 255, 255, 0.55); | |
| stroke-width: 1.5; | |
| } | |
| .upg-ring.back { | |
| stroke: rgba(255, 255, 255, 0.2); | |
| } | |
| .upg-crater { | |
| fill: rgba(0, 0, 0, 0.35); | |
| stroke: rgba(255, 255, 255, 0.15); | |
| } | |
| /* Explore: warp streaks racing past */ | |
| .upg-warp span { | |
| position: absolute; | |
| top: 50%; | |
| left: 50%; | |
| width: 90px; | |
| height: 1px; | |
| background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8)); | |
| transform-origin: 0 50%; | |
| opacity: 0; | |
| animation: upg-warp 2.6s ease-in infinite; | |
| } | |
| .upg-warp span:nth-child(odd) { | |
| background: linear-gradient(90deg, transparent, var(--blue)); | |
| } | |
| .upg-warp span:nth-child(1) { --a: 8deg; animation-delay: 0s; } | |
| .upg-warp span:nth-child(2) { --a: 34deg; animation-delay: 0.3s; } | |
| .upg-warp span:nth-child(3) { --a: 61deg; animation-delay: 1.1s; } | |
| .upg-warp span:nth-child(4) { --a: 97deg; animation-delay: 0.7s; } | |
| .upg-warp span:nth-child(5) { --a: 128deg; animation-delay: 1.6s; } | |
| .upg-warp span:nth-child(6) { --a: 152deg; animation-delay: 0.2s; } | |
| .upg-warp span:nth-child(7) { --a: 181deg; animation-delay: 1.3s; } | |
| .upg-warp span:nth-child(8) { --a: 206deg; animation-delay: 0.5s; } | |
| .upg-warp span:nth-child(9) { --a: 233deg; animation-delay: 1.9s; } | |
| .upg-warp span:nth-child(10) { --a: 262deg; animation-delay: 0.9s; } | |
| .upg-warp span:nth-child(11) { --a: 289deg; animation-delay: 2.2s; } | |
| .upg-warp span:nth-child(12) { --a: 312deg; animation-delay: 0.4s; } | |
| .upg-warp span:nth-child(13) { --a: 337deg; animation-delay: 1.4s; } | |
| .upg-warp span:nth-child(14) { --a: 355deg; animation-delay: 2s; } | |
| /* Limit: the planet dims */ | |
| .upg-limit .upg-planet { | |
| filter: drop-shadow(0 0 10px var(--blue-20)) saturate(0.6); | |
| } | |
| /* Welcome: a burst of sparkles */ | |
| .upg-burst span { | |
| position: absolute; | |
| top: 54%; | |
| left: 50%; | |
| width: 6px; | |
| height: 6px; | |
| margin: -3px; | |
| border-radius: 50%; | |
| background: var(--white); | |
| box-shadow: 0 0 10px var(--blue); | |
| animation: upg-burst 1.6s cubic-bezier(0.1, 0.7, 0.2, 1) both; | |
| } | |
| .upg-burst span:nth-child(3n) { | |
| background: var(--blue); | |
| } | |
| .upg-burst span:nth-child(1) { --a: 0deg; } | |
| .upg-burst span:nth-child(2) { --a: 22deg; animation-delay: 0.05s; } | |
| .upg-burst span:nth-child(3) { --a: 45deg; } | |
| .upg-burst span:nth-child(4) { --a: 67deg; animation-delay: 0.1s; } | |
| .upg-burst span:nth-child(5) { --a: 90deg; } | |
| .upg-burst span:nth-child(6) { --a: 112deg; animation-delay: 0.05s; } | |
| .upg-burst span:nth-child(7) { --a: 135deg; } | |
| .upg-burst span:nth-child(8) { --a: 157deg; animation-delay: 0.1s; } | |
| .upg-burst span:nth-child(9) { --a: 180deg; } | |
| .upg-burst span:nth-child(10) { --a: 202deg; animation-delay: 0.05s; } | |
| .upg-burst span:nth-child(11) { --a: 225deg; } | |
| .upg-burst span:nth-child(12) { --a: 247deg; animation-delay: 0.1s; } | |
| .upg-burst span:nth-child(13) { --a: 270deg; } | |
| .upg-burst span:nth-child(14) { --a: 292deg; animation-delay: 0.05s; } | |
| .upg-burst span:nth-child(15) { --a: 315deg; } | |
| .upg-burst span:nth-child(16) { --a: 337deg; animation-delay: 0.1s; } | |
| /* Fuel meter (limit mode) */ | |
| .upg-fuel { | |
| width: min(360px, 100%); | |
| display: grid; | |
| gap: 6px; | |
| margin-top: 6px; | |
| text-align: left; | |
| } | |
| .upg-fuel p { | |
| margin: 0; | |
| } | |
| .upg-empty { | |
| color: var(--blue); | |
| animation: upg-blink 1.2s steps(2, jump-none) infinite; | |
| } | |
| .upg-fuel-track { | |
| height: 8px; | |
| border-radius: 999px; | |
| background: var(--surface-2); | |
| overflow: hidden; | |
| } | |
| .upg-fuel-fill { | |
| height: 100%; | |
| border-radius: inherit; | |
| background: linear-gradient(90deg, var(--blue-60), var(--blue)); | |
| box-shadow: var(--glow-sm); | |
| } | |
| /* Plans */ | |
| .upg-cycle { | |
| display: flex; | |
| justify-content: center; | |
| } | |
| .upg-plans { | |
| display: grid; | |
| gap: 14px; | |
| } | |
| @media (min-width: 640px) { | |
| .upg-plans { | |
| grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); | |
| } | |
| } | |
| .upg-plan { | |
| position: relative; | |
| display: grid; | |
| align-content: start; | |
| gap: 6px; | |
| padding: 18px; | |
| border: 1px solid var(--line-strong); | |
| border-radius: var(--radius); | |
| background: var(--surface); | |
| } | |
| .upg-plan.pick { | |
| border-color: var(--blue); | |
| background: linear-gradient(180deg, var(--blue-10), transparent 60%); | |
| box-shadow: var(--glow-md); | |
| } | |
| .upg-plan h3 { | |
| margin: 0; | |
| font-family: var(--font-display); | |
| font-size: 1.25rem; | |
| } | |
| .upg-plan p { | |
| margin: 0; | |
| } | |
| .upg-flag { | |
| position: absolute; | |
| top: -11px; | |
| right: 14px; | |
| background: var(--blue); | |
| border-color: var(--blue); | |
| } | |
| .upg-price { | |
| display: flex; | |
| align-items: baseline; | |
| gap: 4px; | |
| margin-top: 6px ; | |
| } | |
| .upg-price .tier-amount { | |
| font-family: var(--font-display); | |
| font-size: 2rem; | |
| font-weight: 600; | |
| } | |
| .upg-boosts { | |
| display: flex; | |
| flex-wrap: wrap; | |
| gap: 6px; | |
| margin: 8px 0 12px; | |
| padding: 0; | |
| list-style: none; | |
| } | |
| .upg-boosts li { | |
| padding: 3px 9px; | |
| border: 1px solid var(--blue-35); | |
| border-radius: 999px; | |
| background: var(--blue-05); | |
| font-size: 0.72rem; | |
| } | |
| .upg-cta { | |
| width: 100%; | |
| justify-content: center; | |
| margin-top: auto; | |
| } | |
| .upg-features { | |
| display: grid; | |
| gap: 8px; | |
| margin: 0; | |
| padding: 0; | |
| list-style: none; | |
| } | |
| .upg-features li { | |
| display: flex; | |
| gap: 10px; | |
| align-items: center; | |
| } | |
| .upg-features .icon { | |
| color: var(--blue); | |
| flex: none; | |
| } | |
| .upg-foot { | |
| display: flex; | |
| flex-wrap: wrap; | |
| justify-content: space-between; | |
| align-items: center; | |
| gap: 10px; | |
| padding-top: 12px; | |
| border-top: 1px solid var(--line); | |
| } | |
| .upg-foot .row { | |
| gap: 16px; | |
| } | |
| .upg-foot a { | |
| color: var(--white); | |
| } | |
| /* ---------- Nudge dock ---------- */ | |
| .nudge { | |
| position: fixed; | |
| right: 16px; | |
| bottom: 16px; | |
| left: 16px; | |
| z-index: 40; | |
| display: flex; | |
| gap: 12px; | |
| padding: 14px 36px 14px 14px; | |
| border: 1px solid var(--line-strong); | |
| border-radius: var(--radius); | |
| background: rgba(0, 0, 0, 0.92); | |
| backdrop-filter: blur(10px); | |
| box-shadow: var(--glow-lg); | |
| animation: nudge-in 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) both; | |
| } | |
| @media (min-width: 640px) { | |
| .nudge { | |
| left: auto; | |
| width: 360px; | |
| right: 24px; | |
| bottom: 24px; | |
| } | |
| } | |
| .nudge-limit, | |
| .nudge-upgrade { | |
| border-color: var(--blue-60); | |
| } | |
| .nudge-icon { | |
| flex: none; | |
| display: grid; | |
| place-items: center; | |
| width: 38px; | |
| height: 38px; | |
| border-radius: 50%; | |
| border: 1px solid var(--blue-35); | |
| background: var(--blue-10); | |
| color: var(--white); | |
| } | |
| .nudge-limit .nudge-icon { | |
| background: var(--blue); | |
| box-shadow: var(--glow-sm); | |
| animation: pulse-ring 2s ease-out infinite; | |
| } | |
| .nudge-body { | |
| display: grid; | |
| gap: 6px; | |
| min-width: 0; | |
| } | |
| .nudge-body h3 { | |
| margin: 0; | |
| font-size: 1rem; | |
| } | |
| .nudge-body p { | |
| margin: 0; | |
| } | |
| .nudge-body .eyebrow { | |
| font-size: 0.65rem; | |
| } | |
| .nudge-body .row { | |
| margin-top: 4px; | |
| gap: 14px; | |
| } | |
| .nudge-close { | |
| position: absolute; | |
| top: 8px; | |
| right: 8px; | |
| width: 26px; | |
| height: 26px; | |
| } | |
| /* ---------- Sidebar fuel gauge ---------- */ | |
| .fuel, | |
| .fuel-mini { | |
| display: none; | |
| } | |
| @media (min-width: 900px) { | |
| .fuel { | |
| display: grid; | |
| gap: 8px; | |
| margin-top: auto; | |
| padding: 12px; | |
| border: 1px solid var(--line); | |
| border-radius: var(--radius); | |
| background: var(--surface); | |
| } | |
| .fuel + .sidebar-user { | |
| margin-top: 0; | |
| } | |
| .fuel.low { | |
| border-color: var(--blue-35); | |
| box-shadow: var(--glow-sm); | |
| } | |
| .fuel-warn { | |
| color: var(--blue); | |
| } | |
| .fuel-row { | |
| display: grid; | |
| gap: 4px; | |
| font-size: 0.7rem; | |
| color: var(--text-2); | |
| } | |
| .fuel-track { | |
| height: 4px; | |
| border-radius: 999px; | |
| background: var(--surface-2); | |
| overflow: hidden; | |
| } | |
| .fuel-fill { | |
| height: 100%; | |
| border-radius: inherit; | |
| background: var(--blue-60); | |
| } | |
| .fuel-fill.hot { | |
| background: var(--blue); | |
| box-shadow: var(--glow-sm); | |
| } | |
| .fuel-cta { | |
| width: 100%; | |
| justify-content: center; | |
| gap: 6px; | |
| margin-top: 4px; | |
| } | |
| .shell.collapsed .fuel { | |
| display: none; | |
| } | |
| .shell.collapsed .fuel-mini { | |
| display: inline-grid; | |
| margin-top: auto; | |
| color: var(--white); | |
| border-color: var(--blue-35); | |
| } | |
| .fuel-mini.low { | |
| background: var(--blue); | |
| box-shadow: var(--glow-sm); | |
| } | |
| } | |
| /* ---------- Motion ---------- */ | |
| @keyframes upg-fade { | |
| from { opacity: 0; } | |
| } | |
| @keyframes upg-rise { | |
| from { opacity: 0; transform: translateY(24px) scale(0.97); } | |
| } | |
| @keyframes upg-drift { | |
| to { transform: translateY(50%); } | |
| } | |
| @keyframes upg-bob { | |
| 50% { transform: translateY(-5px); } | |
| } | |
| @keyframes upg-warp { | |
| 0% { opacity: 0; transform: rotate(var(--a)) translateX(10px) scaleX(0.2); } | |
| 30% { opacity: 1; } | |
| 100% { opacity: 0; transform: rotate(var(--a)) translateX(360px) scaleX(1.4); } | |
| } | |
| @keyframes upg-burst { | |
| 0% { opacity: 1; transform: rotate(var(--a)) translateX(0) scale(1.4); } | |
| 100% { opacity: 0; transform: rotate(var(--a)) translateX(150px) scale(0.3); } | |
| } | |
| @keyframes upg-blink { | |
| 50% { opacity: 0.3; } | |
| } | |
| @keyframes nudge-in { | |
| from { opacity: 0; transform: translateY(20px); } | |
| } | |
| @keyframes pulse-ring { | |
| 0% { box-shadow: 0 0 0 0 var(--blue-60); } | |
| 100% { box-shadow: 0 0 0 12px transparent; } | |
| } | |