:root {
  color-scheme: light dark;
  --font-heading: "Manrope", sans-serif;
  --font-body: "Poppins", sans-serif;
  --type-h1: 4rem;
  --type-h2: 2.8rem;
  --type-h3: 2.2rem;
  --type-h4: 1.6rem;
  --type-p1: 1.4rem;
  --type-p2: 1rem;
  --type-p3: .9rem;
  font-family: var(--font-body);
  font-size: var(--type-p2);
  --bg: #f3f1eb;
  --surface: rgba(255, 255, 255, .78);
  --text: #1b1c1a;
  --muted: #62655e;
  --line: rgba(23, 25, 22, .13);
  --accent: #e6a900;
  --shadow: 0 24px 70px rgba(31, 28, 19, .15);
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body { min-height: 100svh; margin: 0; color: var(--text); background: radial-gradient(circle at 50% 10%, #fff 0, var(--bg) 52%, #e5e1d8 100%); font-family: var(--font-body); font-size: var(--type-p2); }
button, input, select { font: inherit; }
button, select, input { min-height: 44px; }
button { cursor: pointer; }
[hidden] { display: none !important; }

h1, h2, h3, h4, .type-h1, .type-h2, .type-h3, .type-h4 { font-family: var(--font-heading); }
h1, .type-h1 { font-size: var(--type-h1); }
h2, .type-h2 { font-size: var(--type-h2); }
h3, .type-h3 { font-size: var(--type-h3); }
h4, .type-h4 { font-size: var(--type-h4); }
.type-p1 { font-size: var(--type-p1); }
.type-p2 { font-size: var(--type-p2); }
.type-p3 { font-size: var(--type-p3); }

.app { min-height: 100svh; }
.screen { min-height: 100svh; padding: max(24px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left)); }
.screen--form { display: grid; place-items: center; }
.form-card { width: min(100%, 560px); padding: clamp(28px, 7vw, 52px); border: 1px solid rgba(255,255,255,.7); border-radius: 32px; background: var(--surface); box-shadow: var(--shadow); backdrop-filter: blur(20px); }
#setup-screen { grid-template-rows: minmax(auto, 1fr) auto; gap: 20px; background: #eaeff6; }
#setup-screen .form-card { background: #223d61; }
#setup-screen h1 { color: #fff; }
#setup-screen h1 span { display: block; }
#setup-screen h1 span:last-child { color: #eaeff6; }
#setup-screen .eyebrow, #setup-screen .intro { color: #eee; }
#setup-screen .field, #setup-screen .privacy-note { color: #ddd; }
#setup-screen .field select, #setup-screen .number-field { color: #1b1c1a; background: #fff; }
#setup-screen .number-field input { color: #1b1c1a; }
.setup-credit { margin: 0; color: #62655e; font-size: var(--type-p3); text-align: center; }
.setup-credit a { color: inherit; text-decoration: none; }
.setup-credit a:hover { text-decoration: underline; }
.setup-credit a:focus-visible { outline: 3px solid #223d61; outline-offset: 4px; border-radius: 2px; }
.brand-mark { position: relative; width: 30px; height: 48px; margin-bottom: 22px; border: 3px solid #dddddd; border-radius: 8px; }
.brand-mark::before { content: ""; position: absolute; width: 12px; height: 4px; left: 6px; top: -8px; border-radius: 3px 3px 0 0; background: #dddddd; }
.brand-mark span { position: absolute; inset: 18px 3px 3px; border-radius: 3px; background: linear-gradient(135deg, #ffdc36, #f09b00); }
.eyebrow { margin: 0 0 8px; color: var(--muted); font-size: var(--type-p3); font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 0; line-height: 1.02; letter-spacing: -.045em; }
.intro { margin: 20px 0 32px; color: var(--muted); line-height: 1.55; }
.field-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 12px; }
.field { display: block; margin: 0 0 20px; color: var(--muted); font-size: var(--type-p3); font-weight: 600; }
.field > span { display: inline-block; margin-bottom: 8px; }
.field select, .number-field { width: 100%; border: 1px solid var(--line); border-radius: 13px; color: var(--text); background: rgba(255,255,255,.72); font-size: var(--type-p2); }
.field select { padding: 0 12px; }
.number-field { display: flex; align-items: center; padding-right: 14px; overflow: hidden; }
.number-field input { min-width: 0; flex: 1; padding: 0 14px; border: 0; outline: 0; color: var(--text); background: transparent; }
.number-field span { color: var(--muted); font-weight: 500; }
.field select:focus-visible, .number-field:focus-within { outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent); outline-offset: 1px; }
.error { display: block; min-height: 1.25em; margin-top: 5px; color: #b3312b; font-weight: 550; }
.button { width: 100%; border: 0; border-radius: 14px; padding: 13px 20px; font-weight: 750; }
.button--primary { color: #15150f; background: linear-gradient(180deg, #ffd939, #efa600); box-shadow: 0 8px 24px rgba(207, 144, 0, .25), inset 0 1px rgba(255,255,255,.6); }
.button--primary:active { transform: translateY(1px); }
.privacy-note { margin: 18px 0 0; text-align: center; color: var(--muted); font-size: var(--type-p3); }

.screen--battery { display: flex; flex-direction: column; overflow: hidden; background: #223d61; color: #f8f8f4; }
.app-header { width: min(100%, 900px); margin: 0 auto; display: flex; align-items: flex-start; justify-content: space-between; }
.app-header h1 { margin-top: .33em; letter-spacing: -.025em; }
.app-header .eyebrow { color: #b0b3aa; }
.app-tagline { margin: 0; color: #eaeff6; font-weight: 600; letter-spacing: -.01em; }
.icon-button { display: grid; width: 48px; height: 48px; place-items: center; flex: 0 0 auto; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; color: #f7f7f1; background: rgba(255,255,255,.07); }
.icon-button svg { width: 27px; fill: currentColor; stroke: none; }
.icon-button:focus-visible, .text-button:focus-visible, .update-banner button:focus-visible { outline: 3px solid #ffd028; outline-offset: 3px; }
.battery-stage { display: grid; min-height: 667px; flex: 1; place-items: center; padding: 20px 0 10px; }
.battery { position: relative; width: min(69vw, 340px); height: min(61svh, 570px); min-height: 360px; padding-top: 33px; filter: drop-shadow(0 28px 30px rgba(0,0,0,.48)); }
.battery__cap { position: absolute; z-index: 5; isolation: isolate; overflow: hidden; width: 30%; height: 53px; top: 5px; left: 35%; border: 2px solid #070807; border-radius: 50% 50% 44% 44% / 24% 24% 22% 22%; background-color: #777873; background-image: linear-gradient(104deg, transparent 0 19%, rgba(255,255,255,.68) 27%, rgba(255,255,255,.16) 36%, transparent 44% 68%, rgba(255,255,255,.32) 77%, transparent 87%), linear-gradient(100deg, #4b4c48 0, #c8c7c0 17%, #70716c 39%, #eceae2 54%, #73746f 76%, #bbb9b2 90%, #444541 100%); box-shadow: inset 0 5px 4px rgba(255,255,255,.3), inset 0 -8px 7px rgba(0,0,0,.5), 0 4px 5px rgba(0,0,0,.72); }
.battery__cap::before { content: ""; position: absolute; z-index: 1; height: 21px; inset: 0 0 auto; border: 1px solid rgba(16,17,15,.9); border-radius: 50%; background: radial-gradient(ellipse at 31% 18%, #fff 0 5%, rgba(255,255,255,.82) 13%, transparent 30%), radial-gradient(ellipse at 50% 50%, #dddcd5 0, #858681 57%, #4d4e4a 100%); box-shadow: inset 0 3px 4px rgba(255,255,255,.56); }
.battery__cap::after { content: ""; position: absolute; height: 15px; inset: auto 1px -1px; border-radius: 50%; border-bottom: 2px solid rgba(0,0,0,.62); box-shadow: inset 0 -3px 4px rgba(0,0,0,.28); }
.battery__shoulder { position: absolute; z-index: 3; isolation: isolate; overflow: hidden; width: 100%; height: 72px; top: 21px; left: 0; padding-top: 35px; border: 5px solid transparent; border-radius: 50%; background: linear-gradient(104deg, transparent 0 12%, rgba(255,255,255,.22) 20%, transparent 32% 72%, rgba(255,255,255,.13) 83%, transparent 92%) padding-box, radial-gradient(ellipse at 50% 48%, #252623 0 46%, #090a09 66%, #000 82%) padding-box, linear-gradient(#090a09, #090a09) padding-box, conic-gradient(from 0deg, #050605 0 18%, transparent 25%, #65665f 42% 58%, transparent 75%, #050605 82% 100%) border-box; box-shadow: inset 0 -2px 2px rgba(229,230,222,.2), inset 0 5px 6px rgba(255,255,255,.16), inset 0 -8px 9px rgba(0,0,0,.9); }
.battery__shoulder::before { content: ""; position: absolute; z-index: 1; inset: 12% 10% 17%; border: 2px solid #11120f; border-radius: 50%; background-color: #858680; background-image: radial-gradient(ellipse at 35% 20%, rgba(255,255,255,.92) 0 5%, rgba(231,230,223,.72) 18%, transparent 37%), linear-gradient(100deg, #5d5e59 0, #d2d0c8 20%, #787974 43%, #e5e3db 57%, #73746f 78%, #b9b8b1 100%); box-shadow: inset 0 4px 4px rgba(255,255,255,.4), inset 0 -5px 6px rgba(0,0,0,.42), 0 -2px 1px rgba(255,255,255,.32), 0 4px 5px rgba(0,0,0,.85); }
.battery__shoulder::after { content: ""; position: absolute; z-index: 2; inset: 9% 8% 14%; border: 1px solid rgba(224,224,216,.28); border-bottom: 3px solid rgba(0,0,0,.78); border-radius: 50%; pointer-events: none; box-shadow: inset 0 1px rgba(255,255,255,.18); }
.battery__body { position: relative; height: 100%; overflow: hidden; border: 5px solid #050605; border-top-color: transparent; border-radius: 19% 19% 10% 10% / 5% 5% 5% 5%; background: linear-gradient(90deg, #151615, #393a37 8%, #131412 24%, #050605 52%, #111210 76%, #454641 93%, #111210); box-shadow: inset 9px 0 13px rgba(255,255,255,.14), inset -9px 0 14px rgba(255,255,255,.12), inset 0 5px 8px rgba(255,255,255,.18), inset 0 -8px 11px rgba(255,255,255,.08), 0 0 0 2px #555650; }
.battery__fill { --fill: 0%; position: absolute; z-index: 1; width: calc(100% - 18px); height: max(0px, calc(var(--fill) - 40px)); max-height: calc(100% - 54px); left: 9px; bottom: 49px; overflow: visible; border-radius: 0 0 50% 50% / 0 0 17px 17px; background: linear-gradient(90deg, var(--dark), var(--light) 14%, var(--base) 42%, var(--base) 65%, var(--light) 88%, var(--dark)); box-shadow: 0 0 22px color-mix(in srgb, var(--base) 35%, transparent), inset 0 0 18px rgba(255,255,255,.28); transition: height 900ms cubic-bezier(.2,.78,.25,1); }
.battery__fill::before { content: ""; position: absolute; width: 100%; height: 34px; top: -17px; border-radius: 50%; background: radial-gradient(ellipse at 50% 100%, rgba(255,255,255,.72) 0, rgba(255,255,255,.34) 31%, transparent 64%), linear-gradient(90deg, var(--dark), var(--light) 16%, var(--base) 50%, var(--light) 84%, var(--dark)); box-shadow: inset 0 4px 4px rgba(255,255,255,.42), inset 0 -5px 5px rgba(255,255,255,.34); }
.battery__fill::after { content: none; }
.battery__fill span { position: absolute; width: 18%; height: 88%; left: 8%; top: 6%; border-radius: 50%; background: rgba(255,255,255,.13); filter: blur(8px); }
.battery[data-color="amber"] { --base: #ffb400; --light: #ffe03b; --dark: #dd7900; }
.battery[data-color="green"] { --base: #40b76a; --light: #85e29a; --dark: #187a40; }
.battery[data-color="orange"] { --base: #f57625; --light: #ffad52; --dark: #bd3c13; }
.battery[data-color="red"] { --base: #dc3b35; --light: #ff7668; --dark: #901d20; }
.battery__shine { position: absolute; z-index: 2; inset: 4% 6% 9%; border-radius: 13px 13px 50% 50% / 13px 13px 17px 17px; pointer-events: none; background: linear-gradient(90deg, rgba(255,255,255,.18), transparent 17% 77%, rgba(255,255,255,.13)); mix-blend-mode: screen; }
.battery__percentage { position: absolute; z-index: 3; inset: 0 7% 10%; display: grid; place-items: center; color: #fff; font-size: clamp(3.6rem, 16vw, 6.25rem); font-weight: 600; letter-spacing: -.055em; text-shadow: 0 3px 16px rgba(0,0,0,.65); }
.battery__age { position: absolute; z-index: 4; height: 49px; inset: auto 0 0; display: grid; place-items: center; color: #fff; font-size: var(--type-p3); font-weight: 700; letter-spacing: .14em; text-shadow: 0 2px 4px #000; background: linear-gradient(180deg, transparent 0%, #000 100%); }
.site-logo-link { display: block; width: min(69vw, 340px); margin: 0 auto 12px; }
.site-logo-link img { display: block; width: 100%; height: auto; }
.reflection { margin: 0 auto; color: #a8aba2; font-size: var(--type-p3); }

#settings-screen { --surface: #eaeff6; --text: #1b1c1a; --muted: #62655e; --line: rgba(23,25,22,.13); background: #223d61; }
.form-card--settings { padding-top: 30px; background: var(--surface); }
#settings-screen .field select, #settings-screen .number-field { background: rgba(255,255,255,.72); }
.form-header { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; margin-bottom: 34px; }
.form-header h1 { letter-spacing: -.02em; }
.text-button { padding: 0; border: 0; color: var(--muted); background: none; text-align: left; }
.text-button--strong { color: #223d61; font-weight: 600; text-align: right; }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 72px; padding: 13px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.switch-row strong, .switch-row small { display: block; }
.switch-row small { margin-top: 4px; color: var(--muted); font-size: var(--type-p3); }
.switch-row input { appearance: none; display: grid; width: 44px; height: 44px; min-height: 44px; place-content: center; flex: 0 0 auto; border: 2px solid #223d61; border-radius: 7px; background: rgba(255,255,255,.72); }
.switch-row input:checked { background: #223d61; }
.switch-row input:checked::after { content: ""; width: 11px; height: 20px; border: solid #fff; border-width: 0 4px 4px 0; transform: rotate(45deg) translate(-2px, -2px); }
.settings-note { margin-top: 28px; color: var(--muted); font-size: var(--type-p3); line-height: 1.5; }
.update-banner { position: fixed; z-index: 10; display: flex; align-items: center; gap: 16px; left: 50%; bottom: max(18px, env(safe-area-inset-bottom)); transform: translateX(-50%); padding: 10px 10px 10px 18px; border: 1px solid rgba(255,255,255,.15); border-radius: 16px; color: #fff; background: #22231f; box-shadow: 0 12px 35px rgba(0,0,0,.3); }
.update-banner button { border: 0; border-radius: 10px; padding: 0 14px; color: #17170f; font-weight: 750; background: #ffd22f; }

@media (max-width: 600px) {
  .app-header .type-h2 { font-size: var(--type-h3); }
}
@media (max-width: 390px) {
  .form-card { padding: 26px 20px; border-radius: 24px; }
  .field-grid { grid-template-columns: 1fr; gap: 0; }
  .battery { width: min(72vw, 300px); min-height: 330px; }
  .site-logo-link { width: min(72vw, 300px); }
}
@media (orientation: landscape) and (max-height: 600px) {
  .screen--battery { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr auto; align-items: center; }
  .app-header { align-self: start; padding-top: 12px; }
  .battery-stage { grid-row: 1 / 3; grid-column: 2; height: calc(100svh - 48px); }
  .battery { width: min(31vw, 250px); height: min(78svh, 450px); min-height: 280px; }
  .site-logo-link { width: min(31vw, 250px); margin-bottom: 8px; }
  .reflection { grid-column: 1; justify-self: start; margin: 0 0 16px; }
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111210; --surface: rgba(31,32,29,.82); --text: #f2f2ed; --muted: #adafa8; --line: rgba(255,255,255,.13); --shadow: 0 24px 70px rgba(0,0,0,.35); }
  body { background: radial-gradient(circle at 50% 8%, #30312d, var(--bg) 60%); }
  .field select, .number-field { background: rgba(255,255,255,.07); }
  .error { color: #ff9189; }
  .text-button--strong { color: #223d61; }
}
@media (prefers-contrast: more) {
  .field select, .number-field, .icon-button { border-width: 2px; border-color: currentColor; }
  .battery__body { border-width: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; }
}