/* ========================================================================= HSB Theme System — single source of truth for all public pages ========================================================================= ONE theme system, no per-page duplication. Every public page (landing, login, register, recover, verify) links this file and gets identical tokens. Theming works off a `data-theme` attribute on , set before first paint by the inline bootstrap in hsb-theme.js: explicit light explicit dark The attribute is ALWAYS resolved to a concrete value by the bootstrap — it is never absent and never "system". That keeps the CSS to two flat cases instead of interleaving prefers-color-scheme media queries, which is what usually causes dark mode to look like an inversion rather than a design. Structure: 1. Tokens (light) 2. Tokens (dark) 3. Base / reset 4. Layout 5. Navigation 6. Buttons 7. Forms 8. Cards & surfaces 9. Feedback states 10. Theme toggle 11. Utilities ========================================================================= */ /* ---- 1. Tokens — light ------------------------------------------------- */ :root, :root[data-theme="light"] { /* Brand — carried over from the existing system identity */ --hsb-brand: #0891b2; --hsb-brand-strong: #0e7490; --hsb-brand-soft: rgba(8, 145, 178, 0.10); --hsb-brand-ring: rgba(8, 145, 178, 0.22); --hsb-accent: #6366f1; /* Separate token for link TEXT. --hsb-brand measures 3.68:1 on white, which only passes AA at large sizes, and links here render at ~0.8rem. This darker step clears 4.5:1 on both the card and the page background. */ --hsb-link: #0e7490; /* Surfaces — layered, not flat */ --hsb-bg: #f6f9fc; --hsb-bg-elev: #ffffff; --hsb-surface: #ffffff; --hsb-surface-2: #f1f5f9; --hsb-surface-glass: rgba(255, 255, 255, 0.72); /* Text */ --hsb-text: #0f172a; --hsb-text-muted: #556274; /* #7c8ba1 measured 3.46:1 on white — under the 4.5:1 AA floor for small text, and this token is used at 0.72rem. Darkened to clear it. */ --hsb-text-subtle: #64748b; --hsb-text-on-brand: #ffffff; /* Lines & depth */ --hsb-border: rgba(15, 23, 42, 0.09); --hsb-border-strong: rgba(15, 23, 42, 0.16); --hsb-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05); --hsb-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 12px 28px -16px rgba(15, 23, 42, 0.22); --hsb-shadow-lg: 0 2px 6px rgba(15, 23, 42, 0.06), 0 32px 64px -28px rgba(15, 23, 42, 0.30); /* Gradients */ --hsb-grad-brand: linear-gradient(135deg, #0891b2 0%, #0e7490 55%, #155e75 100%); --hsb-grad-hero: radial-gradient(60% 60% at 15% 10%, rgba(8, 145, 178, 0.16) 0%, transparent 60%), radial-gradient(50% 50% at 85% 20%, rgba(99, 102, 241, 0.12) 0%, transparent 60%); --hsb-grad-text: linear-gradient(120deg, #0f172a 0%, #0891b2 100%); /* Status */ --hsb-success: #059669; --hsb-success-bg: rgba(5, 150, 105, 0.10); --hsb-warning: #d97706; --hsb-warning-bg: rgba(217, 119, 6, 0.12); --hsb-danger: #dc2626; --hsb-danger-bg: rgba(220, 38, 38, 0.10); color-scheme: light; } /* ---- 2. Tokens — dark -------------------------------------------------- */ /* Deliberately designed, not inverted: navy-tinted charcoals (never pure black), lifted card surfaces, a brighter brand cyan that survives on dark, and softened text instead of pure white. */ :root[data-theme="dark"] { --hsb-brand: #22d3ee; --hsb-brand-strong: #67e8f9; --hsb-brand-soft: rgba(34, 211, 238, 0.12); --hsb-brand-ring: rgba(34, 211, 238, 0.28); --hsb-accent: #818cf8; /* On dark the bright cyan already measures 10.37:1 — no separate step needed. */ --hsb-link: #22d3ee; --hsb-bg: #0a1220; --hsb-bg-elev: #0f1b2d; --hsb-surface: #111f33; --hsb-surface-2: #16293f; --hsb-surface-glass: rgba(17, 31, 51, 0.72); --hsb-text: #e8f0f8; --hsb-text-muted: #a3b4c8; --hsb-text-subtle: #7f92aa; --hsb-text-on-brand: #04202b; --hsb-border: rgba(148, 175, 205, 0.16); --hsb-border-strong: rgba(148, 175, 205, 0.28); --hsb-shadow-sm: 0 1px 2px rgba(2, 8, 20, 0.5); --hsb-shadow: 0 1px 3px rgba(2, 8, 20, 0.55), 0 12px 28px -16px rgba(2, 8, 20, 0.8); --hsb-shadow-lg: 0 2px 6px rgba(2, 8, 20, 0.6), 0 32px 64px -28px rgba(2, 8, 20, 0.9); --hsb-grad-brand: linear-gradient(135deg, #22d3ee 0%, #0ea5e9 55%, #6366f1 100%); --hsb-grad-hero: radial-gradient(60% 60% at 15% 10%, rgba(34, 211, 238, 0.14) 0%, transparent 60%), radial-gradient(50% 50% at 85% 20%, rgba(129, 140, 248, 0.12) 0%, transparent 60%); --hsb-grad-text: linear-gradient(120deg, #e8f0f8 0%, #22d3ee 100%); --hsb-success: #34d399; --hsb-success-bg: rgba(52, 211, 153, 0.14); --hsb-warning: #fbbf24; --hsb-warning-bg: rgba(251, 191, 36, 0.14); --hsb-danger: #f87171; --hsb-danger-bg: rgba(248, 113, 113, 0.14); color-scheme: dark; } /* ---- Shared scale tokens (theme-independent) --------------------------- */ :root { --hsb-r-sm: 8px; --hsb-r-md: 12px; --hsb-r-lg: 18px; --hsb-r-xl: 26px; --hsb-r-pill: 999px; --hsb-s-1: 0.25rem; --hsb-s-2: 0.5rem; --hsb-s-3: 0.75rem; --hsb-s-4: 1rem; --hsb-s-5: 1.5rem; --hsb-s-6: 2rem; --hsb-s-7: 3rem; --hsb-s-8: 4rem; --hsb-dur-fast: 150ms; --hsb-dur: 260ms; --hsb-dur-slow: 420ms; --hsb-ease: cubic-bezier(0.22, 1, 0.36, 1); --hsb-ease-out: cubic-bezier(0.16, 1, 0.3, 1); --hsb-font: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif; --hsb-nav-h: 68px; } /* ---- 3. Base ----------------------------------------------------------- */ *, *::before, *::after { box-sizing: border-box; } html { font-size: 100%; scroll-behavior: smooth; } body.hsb { margin: 0; min-height: 100vh; font-family: var(--hsb-font); font-size: 0.9375rem; line-height: 1.6; color: var(--hsb-text); background: var(--hsb-bg); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } /* NOTE — why there is no `transition: background-color/color` for the theme swap. * * The obvious implementation is to transition the themed properties on body and * the card surfaces. It does not work: when the value comes from an INHERITED * custom property (--hsb-bg changing on :root), the dependent transition latches * at its start value and never lands on the new colour. Measured directly — * body stayed at the light background indefinitely after switching to dark, * while sibling elements with no transition swapped correctly. * * So the animated swap is delivered by the View Transitions circular reveal in * hsb-theme.js, which animates a snapshot of the whole page and is both smoother * and cheaper than repainting every surface. Browsers without View Transitions * get an instant, correct swap — which beats a smooth, broken one. * * Transitions on interaction (hover, focus, press) live on the components * themselves and are unaffected, because those tokens are not changing. */ /* Set by the bootstrap and removed on load: kills the transition on the very first paint so the resolved theme never animates in from the wrong colour. */ .hsb-booting, .hsb-booting * { transition: none !important; } h1, h2, h3, h4, h5 { margin: 0 0 var(--hsb-s-3); font-weight: 700; line-height: 1.18; letter-spacing: -0.022em; color: var(--hsb-text); } h1 { font-size: clamp(1.9rem, 3.4vw, 3rem); letter-spacing: -0.032em; } h2 { font-size: clamp(1.5rem, 2.4vw, 2.15rem); letter-spacing: -0.026em; } h3 { font-size: 1.2rem; } h4 { font-size: 1.02rem; } p { margin: 0 0 var(--hsb-s-4); color: var(--hsb-text-muted); } a { color: var(--hsb-link); text-decoration: none; } a:hover { color: var(--hsb-brand-strong); text-decoration: underline; } img, svg { max-width: 100%; } /* Keyboard focus — visible in BOTH themes, never removed. */ :where(a, button, input, select, textarea, [tabindex]):focus-visible { outline: 2px solid var(--hsb-brand); outline-offset: 2px; border-radius: var(--hsb-r-sm); } /* Touch targets. Keyed on `pointer: coarse` rather than screen width, because what matters is whether a finger is doing the tapping — a 1024px tablet needs this and a 400px-wide desktop window does not. Compact controls (the small Back button, the password reveal, the theme toggle) measure 35-43px on a mouse-driven screen; this lifts every one of them to the 44px floor on touch. */ @media (pointer: coarse) { .hsb-btn, .hsb-btn-sm, .hsb-theme-toggle, .hsb-input-action, .hsb-nav-toggle, .hsb-tab { min-height: 44px; min-width: 44px; } } .hsb-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; } /* Skip link for keyboard users. */ .hsb-skip { position: absolute; left: 50%; top: 0; transform: translate(-50%, -120%); z-index: 200; padding: 0.6rem 1rem; background: var(--hsb-brand); color: var(--hsb-text-on-brand); border-radius: 0 0 var(--hsb-r-md) var(--hsb-r-md); font-weight: 600; transition: transform var(--hsb-dur) var(--hsb-ease); } .hsb-skip:focus { transform: translate(-50%, 0); color: var(--hsb-text-on-brand); } /* ---- 4. Layout --------------------------------------------------------- */ .hsb-container { width: 100%; max-width: 1140px; margin-inline: auto; padding-inline: clamp(1rem, 3vw, 1.5rem); } .hsb-section { padding-block: clamp(3rem, 7vw, 5.5rem); } .hsb-eyebrow { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.34rem 0.72rem; border-radius: var(--hsb-r-pill); background: var(--hsb-brand-soft); border: 1px solid var(--hsb-brand-ring); color: var(--hsb-brand); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; } .hsb-gradient-text { background: var(--hsb-grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; } /* ---- 5. Navigation ----------------------------------------------------- */ .hsb-nav { position: sticky; top: 0; z-index: 100; height: var(--hsb-nav-h); display: flex; align-items: center; background: var(--hsb-surface-glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--hsb-border); } .hsb-nav-inner { display: flex; align-items: center; gap: var(--hsb-s-4); width: 100%; } .hsb-brand { display: inline-flex; align-items: center; gap: 0.55rem; font-weight: 800; font-size: 1rem; letter-spacing: -0.02em; color: var(--hsb-text); } .hsb-brand:hover { color: var(--hsb-text); } .hsb-brand img { height: 30px; width: auto; display: block; } .hsb-nav-links { display: flex; align-items: center; gap: 0.25rem; margin-left: auto; } .hsb-nav-link { position: relative; padding: 0.45rem 0.75rem; border-radius: var(--hsb-r-sm); color: var(--hsb-text-muted); font-size: 0.875rem; font-weight: 500; } .hsb-nav-link:hover { color: var(--hsb-text); background: var(--hsb-surface-2); } .hsb-nav-link::after { content: ''; position: absolute; left: 0.75rem; right: 0.75rem; bottom: 0.28rem; height: 2px; border-radius: 2px; background: var(--hsb-brand); transform: scaleX(0); transform-origin: left; transition: transform var(--hsb-dur) var(--hsb-ease); } .hsb-nav-link:hover::after, .hsb-nav-link[aria-current="page"]::after { transform: scaleX(1); } .hsb-nav-actions { display: flex; align-items: center; gap: 0.5rem; } /* Mobile menu */ .hsb-nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; background: transparent; border: 1px solid var(--hsb-border); border-radius: var(--hsb-r-sm); color: var(--hsb-text); cursor: pointer; } @media (max-width: 991.98px) { .hsb-nav-toggle { display: inline-flex; } .hsb-nav-links { position: fixed; inset: var(--hsb-nav-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 0.15rem; margin: 0; padding: var(--hsb-s-4); background: var(--hsb-bg-elev); border-bottom: 1px solid var(--hsb-border); box-shadow: var(--hsb-shadow-lg); transform: translateY(-8px); opacity: 0; visibility: hidden; transition: transform var(--hsb-dur) var(--hsb-ease), opacity var(--hsb-dur) var(--hsb-ease), visibility var(--hsb-dur); } .hsb-nav-links[data-open="true"] { transform: translateY(0); opacity: 1; visibility: visible; } .hsb-nav-link { padding: 0.7rem 0.75rem; font-size: 0.95rem; } .hsb-nav-link::after { display: none; } } /* ---- 6. Buttons -------------------------------------------------------- */ .hsb-btn { --_bg: transparent; --_fg: var(--hsb-text); --_bd: var(--hsb-border-strong); position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem; min-height: 44px; /* touch target floor */ padding: 0.6rem 1.15rem; border: 1px solid var(--_bd); border-radius: var(--hsb-r-md); background: var(--_bg); color: var(--_fg); font: inherit; font-size: 0.875rem; font-weight: 600; cursor: pointer; text-align: center; transition: transform var(--hsb-dur-fast) var(--hsb-ease), box-shadow var(--hsb-dur) var(--hsb-ease), background-color var(--hsb-dur) var(--hsb-ease), border-color var(--hsb-dur) var(--hsb-ease), opacity var(--hsb-dur-fast) linear; } .hsb-btn:hover { transform: translateY(-1px); color: var(--_fg); } .hsb-btn:active { transform: translateY(0) scale(0.985); } /* press feedback */ .hsb-btn[disabled], .hsb-btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; transform: none; } .hsb-btn-primary { --_bg: var(--hsb-grad-brand); --_fg: var(--hsb-text-on-brand); --_bd: transparent; box-shadow: 0 8px 20px -10px var(--hsb-brand-ring); } .hsb-btn-primary:hover { box-shadow: 0 12px 26px -10px var(--hsb-brand-ring); } .hsb-btn-ghost { --_bg: var(--hsb-surface); --_fg: var(--hsb-text); --_bd: var(--hsb-border-strong); } .hsb-btn-ghost:hover { --_bg: var(--hsb-surface-2); } .hsb-btn-quiet { --_bd: transparent; --_fg: var(--hsb-text-muted); } .hsb-btn-quiet:hover { --_fg: var(--hsb-text); --_bg: var(--hsb-surface-2); } .hsb-btn-block { width: 100%; } /* Loading state: swaps the label for a spinner without resizing the button. */ .hsb-btn[data-loading="true"] { pointer-events: none; } .hsb-btn[data-loading="true"] .hsb-btn-label { opacity: 0; } .hsb-btn[data-loading="true"]::after { content: ''; position: absolute; width: 1.05rem; height: 1.05rem; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: hsb-spin 0.6s linear infinite; } @keyframes hsb-spin { to { transform: rotate(360deg); } } /* ---- 7. Forms ---------------------------------------------------------- */ .hsb-field { display: flex; flex-direction: column; gap: 0.5rem; /* 8px gap between label and input */ margin-bottom: 0; box-sizing: border-box; } .hsb-label { font-size: 0.875rem; /* 14px */ font-weight: 600; color: var(--hsb-text); line-height: 1.2; } .hsb-input-wrap { position: relative; display: flex; align-items: center; width: 100%; } .hsb-input { width: 100%; height: 48px; min-height: 48px; padding: 0 1rem; /* 16px horizontal padding */ font: inherit; font-size: 0.95rem; /* 15px-16px */ color: var(--hsb-text); background: var(--hsb-surface); border: 1px solid var(--hsb-border-strong); border-radius: var(--hsb-r-md); /* 12px */ box-sizing: border-box; -webkit-appearance: none; appearance: none; transition: border-color var(--hsb-dur-fast) var(--hsb-ease), box-shadow var(--hsb-dur-fast) var(--hsb-ease), background-color var(--hsb-dur) var(--hsb-ease); } .hsb-input::placeholder { color: var(--hsb-text-subtle); opacity: 0.85; } .hsb-input:hover { border-color: var(--hsb-text-subtle); } .hsb-input:focus { outline: none; border-color: var(--hsb-brand); box-shadow: 0 0 0 3px var(--hsb-brand-ring); } .hsb-input:disabled { opacity: 0.6; cursor: not-allowed; background: var(--hsb-surface-2); } .hsb-input:-webkit-autofill, .hsb-input:-webkit-autofill:hover, .hsb-input:-webkit-autofill:focus { -webkit-text-fill-color: var(--hsb-text); -webkit-box-shadow: 0 0 0px 1000px var(--hsb-surface) inset; transition: background-color 5000s ease-in-out 0s; } /* Trailing control (password reveal) sits inside the field with min 48px right padding. */ .hsb-input-has-action .hsb-input { padding-right: 3.25rem; /* 52px */ } .hsb-input-action { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; background: transparent; border: 0; border-radius: var(--hsb-r-sm); color: var(--hsb-text-subtle); cursor: pointer; transition: color var(--hsb-dur-fast), background-color var(--hsb-dur-fast); } .hsb-input-action:hover { color: var(--hsb-text); background: var(--hsb-surface-2); } .hsb-input-action:focus-visible { outline: none; color: var(--hsb-brand); box-shadow: 0 0 0 2px var(--hsb-brand-ring); } .hsb-input-action .hsb-eye-off { display: none; } .hsb-input-action[aria-pressed="true"] .hsb-eye-on { display: none; } .hsb-input-action[aria-pressed="true"] .hsb-eye-off { display: block; } /* Validation — reserves row space so error messages do not cause major layout jumps. */ .hsb-hint { font-size: 0.78rem; color: var(--hsb-text-subtle); margin: 0; } .hsb-field[data-state="error"] .hsb-input { border-color: var(--hsb-danger); } .hsb-field[data-state="error"] .hsb-input:focus { box-shadow: 0 0 0 3px var(--hsb-danger-bg); } .hsb-field[data-state="error"] .hsb-hint { color: var(--hsb-danger); } .hsb-field[data-state="success"] .hsb-input { border-color: var(--hsb-success); } .hsb-field[data-state="success"] .hsb-hint { color: var(--hsb-success); } .hsb-check { display: inline-flex; align-items: center; gap: 0.5rem; /* 8px gap between checkbox and text */ font-size: 0.85rem; color: var(--hsb-text-muted); cursor: pointer; user-select: none; line-height: 1.3; } .hsb-check input[type="checkbox"] { width: 18px; height: 18px; margin: 0; accent-color: var(--hsb-brand); flex: 0 0 18px; cursor: pointer; border-radius: 4px; } .hsb-check input[type="checkbox"]:focus-visible { outline: 2px solid var(--hsb-brand); outline-offset: 2px; } /* Password strength */ .hsb-strength { display: flex; gap: 4px; margin-top: 0.4rem; } .hsb-strength span { height: 4px; flex: 1; border-radius: 2px; background: var(--hsb-surface-2); transition: background-color var(--hsb-dur) var(--hsb-ease); } .hsb-strength[data-score="1"] span:nth-child(-n+1) { background: var(--hsb-danger); } .hsb-strength[data-score="2"] span:nth-child(-n+2) { background: var(--hsb-warning); } .hsb-strength[data-score="3"] span:nth-child(-n+3) { background: #0ea5e9; } .hsb-strength[data-score="4"] span { background: var(--hsb-success); } /* Live requirement checklist, injected next to the meter by hsb-motion.js. The bar alone said "Weak" without saying what was missing, so people only discovered the real rules when the server rejected the form. Mirrors appValidatePassword() in password_policy.php. Uses both a tick and a weight change so state is not carried by colour alone. */ .hsb-pw-rules { list-style: none; margin: 0.5rem 0 0; padding: 0; display: grid; gap: 0.2rem; } .hsb-pw-rule { display: flex; align-items: center; gap: 0.45rem; font-size: 0.78rem; line-height: 1.35; color: var(--hsb-text-muted); transition: color var(--hsb-dur) var(--hsb-ease); } .hsb-pw-mark { flex: none; position: relative; width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid currentColor; opacity: 0.55; } .hsb-pw-rule.is-met { /* Deliberately darker than --hsb-success. The token green measures ~3.6:1 on the light surface, which fails AA for text this size; this reads ~5.1:1. The tick below keeps the token colour — as a graphic it only needs 3:1. */ color: #047857; font-weight: 600; } [data-theme="dark"] .hsb-pw-rule.is-met { color: var(--hsb-success); } .hsb-pw-rule.is-met .hsb-pw-mark { opacity: 1; background: var(--hsb-success); border-color: var(--hsb-success); } .hsb-pw-rule.is-met .hsb-pw-mark::after { content: ''; position: absolute; left: 4px; top: 1px; width: 4px; height: 8px; border: solid var(--hsb-surface, #fff); border-width: 0 2px 2px 0; transform: rotate(45deg); } @media (prefers-reduced-motion: reduce) { .hsb-pw-rule { transition: none; } } /* ---- 8. Cards & surfaces ----------------------------------------------- */ .hsb-card { background: var(--hsb-surface); border: 1px solid var(--hsb-border); border-radius: var(--hsb-r-lg); box-shadow: var(--hsb-shadow); } .hsb-card-pad { padding: clamp(1.25rem, 3vw, 2rem); } .hsb-feature { position: relative; overflow: hidden; padding: 1.35rem; background: var(--hsb-surface); border: 1px solid var(--hsb-border); border-radius: var(--hsb-r-lg); transition: transform var(--hsb-dur) var(--hsb-ease), box-shadow var(--hsb-dur) var(--hsb-ease), border-color var(--hsb-dur) var(--hsb-ease); } .hsb-feature:hover { transform: translateY(-4px); border-color: var(--hsb-brand-ring); box-shadow: var(--hsb-shadow-lg); } /* Gradient hairline that wipes in on hover. */ .hsb-feature::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--hsb-grad-brand); transform: scaleX(0); transform-origin: left; transition: transform var(--hsb-dur-slow) var(--hsb-ease); } .hsb-feature:hover::before { transform: scaleX(1); } .hsb-icon { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: var(--hsb-r-md); background: var(--hsb-brand-soft); border: 1px solid var(--hsb-brand-ring); color: var(--hsb-brand); font-size: 1.05rem; margin-bottom: 0.85rem; } .hsb-panel { background: var(--hsb-bg-elev); border: 1px solid var(--hsb-border); border-radius: var(--hsb-r-lg); } /* ---- 9. Feedback ------------------------------------------------------- */ .hsb-alert { display: flex; align-items: center; gap: 0.65rem; padding: 0.75rem 1rem; margin-bottom: 1.25rem; /* 20px margin bottom to separate from form/fields */ border: 1px solid transparent; border-radius: var(--hsb-r-md); /* 12px */ font-size: 0.875rem; line-height: 1.4; box-sizing: border-box; } .hsb-alert-error { background: var(--hsb-danger-bg); border-color: var(--hsb-danger); color: var(--hsb-danger); } .hsb-alert-success { background: var(--hsb-success-bg); border-color: var(--hsb-success); color: var(--hsb-success); } .hsb-alert-warning { background: var(--hsb-warning-bg); border-color: var(--hsb-warning); color: var(--hsb-warning); } .hsb-alert-info { background: var(--hsb-brand-soft); border-color: var(--hsb-brand-ring); color: var(--hsb-brand); } /* ---- 10. Theme toggle -------------------------------------------------- */ .hsb-theme-toggle { position: relative; width: 44px; height: 44px; display: inline-grid; place-items: center; background: var(--hsb-surface); border: 1px solid var(--hsb-border-strong); border-radius: var(--hsb-r-md); color: var(--hsb-text); cursor: pointer; overflow: hidden; transition: background-color var(--hsb-dur) var(--hsb-ease), border-color var(--hsb-dur) var(--hsb-ease); } .hsb-theme-toggle:hover { background: var(--hsb-surface-2); border-color: var(--hsb-brand-ring); } /* Both icons are stacked; the inactive one rotates and scales out. */ .hsb-theme-toggle svg { grid-area: 1 / 1; width: 19px; height: 19px; transition: transform var(--hsb-dur-slow) var(--hsb-ease), opacity var(--hsb-dur) var(--hsb-ease); } :root[data-theme="light"] .hsb-theme-toggle .hsb-moon { transform: rotate(70deg) scale(0.4); opacity: 0; } :root[data-theme="light"] .hsb-theme-toggle .hsb-sun { transform: none; opacity: 1; } :root[data-theme="dark"] .hsb-theme-toggle .hsb-sun { transform: rotate(-70deg) scale(0.4); opacity: 0; } :root[data-theme="dark"] .hsb-theme-toggle .hsb-moon { transform: none; opacity: 1; } /* Circular reveal used by the View Transition path in hsb-theme.js. */ ::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; } ::view-transition-old(root) { z-index: 1; } ::view-transition-new(root) { z-index: 9999; } /* ---- 11. Utilities ----------------------------------------------------- */ .hsb-grid { display: grid; gap: var(--hsb-s-4); } .hsb-grid-2 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); } .hsb-grid-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } .hsb-muted { color: var(--hsb-text-muted); } .hsb-subtle { color: var(--hsb-text-subtle); } .hsb-small { font-size: 0.8rem; } .hsb-center { text-align: center; } .hsb-stack { display: flex; flex-direction: column; } .hsb-row { display: flex; align-items: center; } .hsb-between { display: flex; align-items: center; justify-content: space-between; gap: var(--hsb-s-3); } .hsb-wrap { flex-wrap: wrap; } .hsb-gap-2 { gap: var(--hsb-s-2); } .hsb-gap-3 { gap: var(--hsb-s-3); } .hsb-gap-4 { gap: var(--hsb-s-4); } .hsb-mt-0 { margin-top: 0; } .hsb-mb-0 { margin-bottom: 0; } /* ---- Footer ------------------------------------------------------------ */ .hsb-footer { background: var(--hsb-bg-elev); border-top: 1px solid var(--hsb-border); padding-block: var(--hsb-s-7) var(--hsb-s-5); } .hsb-footer h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--hsb-text-subtle); } .hsb-footer a { display: block; padding: 0.22rem 0; color: var(--hsb-text-muted); font-size: 0.85rem; } .hsb-footer a:hover { color: var(--hsb-brand); } .hsb-footer-bottom { margin-top: var(--hsb-s-5); padding-top: var(--hsb-s-4); border-top: 1px solid var(--hsb-border); font-size: 0.8rem; color: var(--hsb-text-subtle); }