/* =========================================================================== Counter — foglio di stile --------------------------------------------------------------------------- Nessun framework CSS: solo variabili custom, flexbox e grid. I due temi (chiaro/scuro) sono gestiti con [data-theme] sull'elemento , impostato da JavaScript e ricordato in localStorage. =========================================================================== */ /* --- Reset essenziale ---------------------------------------------------- */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } /* --- Variabili di tema --------------------------------------------------- */ :root { --bg: #0b0e1a; --bg-glow-a: rgba(99, 102, 241, 0.28); --bg-glow-b: rgba(14, 165, 233, 0.20); --surface: rgba(23, 27, 46, 0.82); --surface-soft: rgba(255, 255, 255, 0.04); --border: rgba(255, 255, 255, 0.10); --text: #eef1f8; --text-muted: #9aa3bd; --accent: #6366f1; --positive: #34d399; --negative: #fb7185; --shadow: 0 24px 60px rgba(0, 0, 0, 0.45); --radius-lg: 24px; --radius-md: 16px; --radius-sm: 10px; --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace; } :root[data-theme="light"] { --bg: #eef1f9; --bg-glow-a: rgba(99, 102, 241, 0.20); --bg-glow-b: rgba(14, 165, 233, 0.16); --surface: rgba(255, 255, 255, 0.88); --surface-soft: rgba(15, 23, 42, 0.04); --border: rgba(15, 23, 42, 0.10); --text: #131a2e; --text-muted: #5a6480; --accent: #4f46e5; --positive: #059669; --negative: #e11d48; --shadow: 0 24px 50px rgba(23, 32, 66, 0.16); } /* --- Impostazioni di base ------------------------------------------------ */ html { -webkit-text-size-adjust: 100%; } body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: clamp(1rem, 4vw, 2.5rem); font-family: var(--font); color: var(--text); background-color: var(--bg); background-image: radial-gradient(60rem 40rem at 12% -10%, var(--bg-glow-a), transparent 60%), radial-gradient(50rem 35rem at 95% 105%, var(--bg-glow-b), transparent 60%); background-attachment: fixed; -webkit-font-smoothing: antialiased; transition: background-color 0.35s ease, color 0.35s ease; } .app { width: 100%; max-width: 30rem; display: flex; flex-direction: column; gap: 1.25rem; } /* --- Intestazione -------------------------------------------------------- */ .header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; } .header__title { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; } .header__subtitle { margin-top: 0.25rem; font-size: 0.875rem; line-height: 1.5; color: var(--text-muted); } /* --- Card ---------------------------------------------------------------- */ .card { display: flex; flex-direction: column; gap: 1.5rem; padding: clamp(1.25rem, 5vw, 2rem); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); } /* --- Display ------------------------------------------------------------- */ .display { display: flex; flex-direction: column; align-items: center; gap: 0.35rem; padding: 1.5rem 1rem; background: var(--surface-soft); border: 1px solid var(--border); border-radius: var(--radius-md); } .display__label, .display__hint { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); } .display__hint { letter-spacing: 0.04em; text-transform: none; } .display__value { font-family: var(--font-mono); font-size: clamp(3.5rem, 18vw, 5rem); font-weight: 700; line-height: 1.05; font-variant-numeric: tabular-nums; transition: color 0.25s ease; } .display[data-sign="positive"] .display__value { color: var(--positive); } .display[data-sign="negative"] .display__value { color: var(--negative); } .display[data-sign="zero"] .display__value { color: var(--text); } /* Animazione al cambio di valore */ @keyframes pop-up { 0% { transform: translateY(0.35rem) scale(0.94); opacity: 0.55; } 100% { transform: translateY(0) scale(1); opacity: 1; } } @keyframes pop-down { 0% { transform: translateY(-0.35rem) scale(0.94); opacity: 0.55; } 100% { transform: translateY(0) scale(1); opacity: 1; } } .display__value.is-up { animation: pop-up 0.22s ease-out; } .display__value.is-down { animation: pop-down 0.22s ease-out; } /* --- Pulsanti ------------------------------------------------------------ */ .controls { display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem; } .btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; min-height: 3.75rem; padding: 0.75rem 1rem; font-family: inherit; font-size: 1rem; font-weight: 600; color: var(--text); background: var(--surface-soft); border: 1px solid var(--border); border-radius: var(--radius-md); cursor: pointer; transition: transform 0.12s ease, background-color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease; } .btn:hover:not(:disabled) { background: color-mix(in srgb, var(--accent) 16%, transparent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); } .btn:active:not(:disabled) { transform: scale(0.97); } .btn:disabled { opacity: 0.4; cursor: not-allowed; } /* I due pulsanti principali usano solo il simbolo, grande e ben leggibile */ .btn--increment .icon, .btn--decrement .icon { width: 1.85rem; height: 1.85rem; } .btn--increment .icon { color: var(--positive); } .btn--decrement .icon { color: var(--negative); } .btn--increment:disabled .icon, .btn--decrement:disabled .icon { color: var(--text-muted); } .btn--increment:hover:not(:disabled) { background: color-mix(in srgb, var(--positive) 18%, transparent); border-color: color-mix(in srgb, var(--positive) 50%, transparent); } .btn--decrement:hover:not(:disabled) { background: color-mix(in srgb, var(--negative) 18%, transparent); border-color: color-mix(in srgb, var(--negative) 50%, transparent); } .btn--ghost { min-height: 2.75rem; padding: 0.5rem 1rem; font-size: 0.875rem; font-weight: 500; color: var(--text-muted); background: transparent; } .btn--ghost:hover:not(:disabled) { color: var(--text); } .icon-button { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 2.5rem; height: 2.5rem; color: var(--text-muted); background: var(--surface-soft); border: 1px solid var(--border); border-radius: 50%; cursor: pointer; transition: color 0.2s ease, background-color 0.2s ease, transform 0.12s ease; } .icon-button:hover { color: var(--text); background: color-mix(in srgb, var(--accent) 18%, transparent); } .icon-button:active { transform: scale(0.94); } .icon { width: 1.15rem; height: 1.15rem; fill: currentColor; flex: none; } /* Focus sempre visibile per la navigazione da tastiera */ .btn:focus-visible, .icon-button:focus-visible, .field__input:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } /* --- Opzioni (passo + azzera) -------------------------------------------- */ .options { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: 0.25rem; border-top: 1px solid var(--border); } .field { display: flex; align-items: center; gap: 0.6rem; padding-top: 0.75rem; } .field__label { font-size: 0.8125rem; font-weight: 500; color: var(--text-muted); } .field__input { width: 4.75rem; padding: 0.45rem 0.6rem; font-family: var(--font-mono); font-size: 0.9375rem; color: var(--text); background: var(--surface-soft); border: 1px solid var(--border); border-radius: var(--radius-sm); } .options .btn--ghost { margin-top: 0.75rem; } /* --- Storico ------------------------------------------------------------- */ .history { display: flex; flex-direction: column; gap: 0.6rem; padding-top: 1rem; border-top: 1px solid var(--border); } .history__title { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); } .history__list { display: flex; flex-direction: column; gap: 0.35rem; list-style: none; } .history__item { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0.45rem 0.7rem; font-size: 0.8125rem; background: var(--surface-soft); border-radius: var(--radius-sm); animation: slide-in 0.2s ease-out; } @keyframes slide-in { from { opacity: 0; transform: translateY(-0.25rem); } to { opacity: 1; transform: translateY(0); } } .history__item[data-kind="up"] .history__badge { color: var(--positive); } .history__item[data-kind="down"] .history__badge { color: var(--negative); } .history__badge { font-weight: 600; } .history__value { font-family: var(--font-mono); color: var(--text-muted); } .history__empty { font-size: 0.8125rem; line-height: 1.5; color: var(--text-muted); } .history__empty[hidden] { display: none; } /* --- Note e footer ------------------------------------------------------- */ .storage-note { padding: 0.65rem 0.9rem; font-size: 0.8125rem; color: var(--text-muted); background: var(--surface-soft); border: 1px solid var(--border); border-radius: var(--radius-sm); } .storage-note[hidden] { display: none; } .footer { display: flex; flex-direction: column; gap: 0.4rem; text-align: center; font-size: 0.8125rem; line-height: 1.6; color: var(--text-muted); } .footer a { color: var(--text); text-decoration: underline; text-underline-offset: 2px; } kbd { display: inline-block; min-width: 1.5rem; padding: 0.1rem 0.35rem; font-family: var(--font-mono); font-size: 0.75rem; text-align: center; color: var(--text); background: var(--surface-soft); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 6px; } .noscript { max-width: 30rem; margin: auto; padding: 1rem 1.25rem; font-family: var(--font); color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); } /* --- Schermi molto stretti ----------------------------------------------- */ @media (max-width: 22rem) { .options { flex-direction: column; align-items: stretch; } .options .btn--ghost { justify-content: center; } } /* --- Rispetto delle preferenze di movimento ------------------------------ */ @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; } }