:root {
    --page-bg: #eef5f2;
    --panel: rgba(255, 255, 255, 0.92);
    --panel-strong: #ffffff;
    --line: rgba(17, 53, 50, 0.14);
    --ink: #142220;
    --ink-soft: #445d59;
    --brand: #0c8f7a;
    --brand-strong: #086c5d;
    --accent: #d88434;
    --accent-soft: #fff0de;
    --shadow-lg: 0 24px 70px rgba(9, 33, 30, 0.12);
    --shadow-md: 0 16px 40px rgba(9, 33, 30, 0.1);
    --radius-xl: 28px;
    --radius-lg: 18px;
    --radius-md: 12px;
    --content-width: 1200px;
    --body-font: "Avenir Next", "Franklin Gothic Medium", "Trebuchet MS", sans-serif;
    --display-font: "Palatino Linotype", "Book Antiqua", Palatino, serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    overflow-x: hidden;
    color: var(--ink);
    font-family: var(--body-font);
    background:
        radial-gradient(circle at top left, rgba(12, 143, 122, 0.18) 0, rgba(12, 143, 122, 0) 34%),
        radial-gradient(circle at top right, rgba(216, 132, 52, 0.16) 0, rgba(216, 132, 52, 0) 28%),
        linear-gradient(180deg, #f5fbf8 0%, #eef4f1 50%, #f8f4ec 100%);
}

body.boot-loading {
    overflow: hidden;
    background: #06131a;
}

body.boot-loading::before,
body.boot-loading::after {
    opacity: 0;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.64) 0%, rgba(255, 255, 255, 0.12) 38%, rgba(255, 255, 255, 0.52) 100%),
        url("/images/MathBackground.jpg") center top / cover no-repeat;
    opacity: 0.26;
    mix-blend-mode: multiply;
    filter: saturate(0.74) contrast(1.04);
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 18% 18%, rgba(12, 143, 122, 0.08) 0, rgba(12, 143, 122, 0) 24%),
        radial-gradient(circle at 82% 12%, rgba(216, 132, 52, 0.08) 0, rgba(216, 132, 52, 0) 24%);
}

body,
button,
input,
select,
textarea {
    font: inherit;
}

h1,
h2,
h3,
h4 {
    font-family: var(--display-font);
}

a {
    color: inherit;
}

#app {
    min-height: 100vh;
    position: relative;
}

.boot-loader {
    position: fixed;
    inset: 0;
    z-index: 1000;
    width: 100vw;
    min-height: 100vh;
    overflow: hidden;
    background:
        radial-gradient(circle at 18% 18%, rgba(12, 143, 122, 0.28) 0, rgba(12, 143, 122, 0) 28%),
        radial-gradient(circle at 82% 16%, rgba(31, 90, 224, 0.22) 0, rgba(31, 90, 224, 0) 26%),
        radial-gradient(circle at 50% 74%, rgba(216, 132, 52, 0.16) 0, rgba(216, 132, 52, 0) 28%),
        linear-gradient(180deg, #071019 0%, #06121a 42%, #09161c 100%);
    color: #e8fbf5;
    font-family: "Cascadia Mono", Consolas, "Lucida Console", monospace;
    opacity: 1;
    transition: opacity 5000ms linear;
}

.boot-loader.is-fading {
    opacity: 0;
    pointer-events: none;
}

.boot-loader::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(7, 24, 31, 0.96) 0%, rgba(7, 24, 31, 0.48) 18%, rgba(7, 24, 31, 0.18) 50%, rgba(7, 24, 31, 0.48) 82%, rgba(7, 24, 31, 0.96) 100%),
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0, rgba(255, 255, 255, 0.025) 1px, transparent 1px, transparent 52px),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.02) 0, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 52px);
    opacity: 0.42;
}

.boot-loader::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at center, rgba(3, 10, 16, 0) 0, rgba(3, 10, 16, 0.08) 36%, rgba(3, 10, 16, 0.58) 100%);
}

.boot-loader__canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.boot-loader__layout {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: clamp(1rem, 3vw, 2rem);
    display: grid;
    grid-template-columns: minmax(14rem, 1fr) minmax(18rem, 34rem) minmax(14rem, 1fr);
    grid-template-rows: auto minmax(20rem, 1fr) auto;
    grid-template-areas:
        "north north north"
        "west engine east"
        "south south south";
    gap: clamp(0.85rem, 2vw, 1.3rem);
    align-items: center;
}

.boot-loader__engine {
    grid-area: engine;
    position: relative;
    width: min(34rem, 100%);
    aspect-ratio: 1;
    justify-self: center;
    display: grid;
    place-items: center;
}

.boot-loader__orbit {
    --orbit-radius: clamp(7.6rem, 16vw, 10.5rem);
    position: absolute;
    inset: 0;
}

.boot-loader__orbit::before,
.boot-loader__orbit::after {
    content: "";
    position: absolute;
    inset: 10%;
    border-radius: 50%;
    border: 1px solid rgba(137, 210, 199, 0.18);
}

.boot-loader__orbit::after {
    inset: 22%;
    border-color: rgba(255, 209, 145, 0.12);
}

.boot-loader__node {
    position: absolute;
    left: 50%;
    top: 50%;
    min-width: 3.25rem;
    padding: 0.45rem 0.72rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 1px rgba(8, 29, 36, 0.42), 0 12px 28px rgba(3, 11, 17, 0.35);
    color: var(--node-color, #e8fbf5);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-align: center;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc(var(--orbit-radius) * -1)) rotate(calc(var(--angle) * -1));
    animation: boot-node-pulse 3.2s ease-in-out infinite;
    animation-delay: var(--delay, 0s);
}

.boot-loader__node--wide {
    min-width: 5.8rem;
}

.boot-loader__node.is-active {
    border-color: rgba(255, 255, 255, 0.36);
    background: rgba(255, 255, 255, 0.16);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 0 28px rgba(129, 240, 223, 0.18);
}

.boot-loader__core {
    position: relative;
    width: min(46vw, 18rem);
    aspect-ratio: 1;
    border-radius: 50%;
    display: grid;
    place-items: center;
    padding: 2rem;
    overflow: hidden;
    border: 1px solid rgba(137, 210, 199, 0.2);
    background:
        radial-gradient(circle at 34% 34%, rgba(255, 255, 255, 0.18) 0, rgba(255, 255, 255, 0.06) 24%, rgba(9, 21, 31, 0.96) 74%),
        linear-gradient(180deg, rgba(7, 18, 26, 0.96) 0%, rgba(5, 12, 19, 0.98) 100%);
    box-shadow: inset 0 0 44px rgba(12, 143, 122, 0.16), 0 0 48px rgba(7, 38, 52, 0.24);
}

.boot-loader__core::before,
.boot-loader__core::after {
    content: "";
    position: absolute;
    border-radius: 50%;
}

.boot-loader__core::before {
    inset: 9%;
    border: 1px solid rgba(137, 210, 199, 0.16);
    background:
        conic-gradient(from 0deg, rgba(130, 239, 224, 0.24) 0deg, rgba(130, 239, 224, 0) 72deg, rgba(255, 209, 145, 0.16) 110deg, rgba(255, 209, 145, 0) 170deg, rgba(159, 182, 255, 0.18) 216deg, rgba(159, 182, 255, 0) 290deg, rgba(130, 239, 224, 0.2) 360deg);
    animation: boot-spin 14s linear infinite;
}

.boot-loader__core::after {
    inset: 18%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 0 18px rgba(130, 239, 224, 0.08), 0 0 28px rgba(130, 239, 224, 0.08);
    animation: boot-pulse 2.8s ease-in-out infinite;
}

.boot-loader__core-stack {
    position: relative;
    z-index: 1;
    width: min(14.5rem, 100%);
    display: grid;
    gap: 0.55rem;
    justify-items: center;
}

.boot-loader__core-value,
.boot-loader__core-meta {
    margin: 0;
}

.boot-loader__core-value {
    max-width: 100%;
    color: #f4fbff;
    font-size: clamp(2.2rem, 5vw, 4.75rem);
    font-weight: 700;
    line-height: 0.92;
    letter-spacing: 0.06em;
    text-align: center;
    text-shadow: 0 0 18px rgba(140, 224, 255, 0.18);
    word-break: break-word;
}

.boot-loader__core-meta {
    color: rgba(216, 235, 243, 0.78);
    font-size: clamp(0.82rem, 1vw, 0.95rem);
    line-height: 1.45;
    text-align: center;
}

.boot-loader__panel {
    position: relative;
    width: 100%;
    padding: 1rem 1.05rem;
    overflow: hidden;
    border-radius: 22px;
    border: 1px solid rgba(154, 215, 208, 0.14);
    background: linear-gradient(180deg, rgba(9, 20, 29, 0.8) 0%, rgba(6, 15, 23, 0.92) 100%);
    box-shadow: 0 20px 44px rgba(4, 14, 22, 0.28);
    backdrop-filter: blur(14px);
    animation: boot-float 4.8s ease-in-out infinite;
}

.boot-loader__panel::after {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, rgba(130, 239, 224, 0) 0%, rgba(130, 239, 224, 0.42) 48%, rgba(130, 239, 224, 0) 100%);
}

.boot-loader__panel.is-live {
    border-color: rgba(130, 239, 224, 0.34);
    box-shadow: 0 0 0 1px rgba(130, 239, 224, 0.08), 0 24px 54px rgba(4, 14, 22, 0.36);
}

.boot-loader__panel--north {
    grid-area: north;
    max-width: 42rem;
    justify-self: center;
}

.boot-loader__panel--west {
    grid-area: west;
    animation-delay: -0.9s;
}

.boot-loader__panel--east {
    grid-area: east;
    animation-delay: -1.8s;
}

.boot-loader__panel--south {
    grid-area: south;
    max-width: 44rem;
    justify-self: center;
    animation-delay: -2.6s;
}

.boot-loader__panel-head {
    display: flex;
    justify-content: space-between;
    gap: 0.55rem;
    margin-bottom: 0.78rem;
}

.boot-loader__panel-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 1.95rem;
    padding: 0.24rem 0.66rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.09);
    background: rgba(255, 255, 255, 0.08);
    color: rgba(227, 243, 250, 0.88);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.boot-loader__panel-value {
    margin: 0;
    color: #effbfa;
    font-size: clamp(1rem, 1.55vw, 1.24rem);
    line-height: 1.48;
    word-break: break-word;
}

.boot-loader__panel-value--soft {
    margin-top: 0.45rem;
    color: rgba(207, 223, 231, 0.72);
    font-size: clamp(0.9rem, 1.2vw, 0.98rem);
}

.boot-loader sub {
    font-size: 0.62em;
    vertical-align: -0.3em;
}

@keyframes boot-spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes boot-pulse {
    0%,
    100% {
        transform: scale(0.985);
        opacity: 0.78;
    }

    50% {
        transform: scale(1.015);
        opacity: 1;
    }
}

@keyframes boot-node-pulse {
    0%,
    100% {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc(var(--orbit-radius) * -1)) rotate(calc(var(--angle) * -1)) scale(1);
    }

    50% {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc((var(--orbit-radius) - 0.18rem) * -1)) rotate(calc(var(--angle) * -1)) scale(1.04);
    }
}

@keyframes boot-float {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

@media (max-width: 920px) {
    .boot-loader__layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto auto;
        grid-template-areas:
            "north"
            "engine"
            "west"
            "east"
            "south";
    }

    .boot-loader__panel,
    .boot-loader__panel--north,
    .boot-loader__panel--south {
        max-width: none;
        justify-self: stretch;
    }

    .boot-loader__engine {
        width: min(28rem, 100%);
    }
}

@media (max-width: 640px) {
    .boot-loader__layout {
        padding: 0.85rem;
        gap: 0.8rem;
    }

    .boot-loader__core {
        width: min(74vw, 17rem);
    }

    .boot-loader__panel {
        padding: 0.88rem 0.9rem;
        animation-duration: 5.6s;
    }

    .boot-loader__panel-head {
        flex-wrap: wrap;
    }
}

@media (prefers-reduced-motion: reduce) {
    .boot-loader,
    .boot-loader__panel,
    .boot-loader__node,
    .boot-loader__core::before,
    .boot-loader__core::after {
        animation: none;
        transition: none;
    }
}
#blazor-error-ui {
    display: none;
    position: fixed;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    z-index: 1000;
    border: 1px solid rgba(148, 38, 33, 0.2);
    border-radius: var(--radius-md);
    background: #fff1ef;
    color: #7b1f1f;
    box-shadow: var(--shadow-md);
    padding: 0.9rem 1rem 0.95rem;
}

#blazor-error-ui .reload {
    font-weight: 700;
    margin-left: 0.6rem;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.9rem;
    top: 0.7rem;
}

/* MainLayout.razor.css */
.shell {
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto;
    position: relative;
    z-index: 1;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(18px);
    background: rgba(10, 24, 23, 0.78);
    border-bottom: 1px solid rgba(229, 241, 237, 0.12);
    box-shadow: 0 14px 32px rgba(7, 22, 20, 0.12);
}

.site-header__inner,
.site-main,
.site-footer {
    width: min(var(--content-width), calc(100% - 1.5rem));
    margin: 0 auto;
}

.site-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: end;
    padding: 0.9rem 0 1rem;
}

.site-brand__link {
    display: inline-grid;
    gap: 0.14rem;
    text-decoration: none;
}

.site-brand__eyebrow {
    color: #89d2c7;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.site-brand__title {
    color: #ffffff;
    font-size: clamp(1.35rem, 2.2vw, 1.8rem);
    letter-spacing: 0.03em;
}

.site-brand__tagline {
    margin: 0.35rem 0 0;
    max-width: 44rem;
    color: rgba(232, 242, 239, 0.88);
    font-size: 0.98rem;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    justify-content: flex-end;
}

.site-nav__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.6rem;
    padding: 0.6rem 1rem;
    border: 1px solid rgba(223, 236, 233, 0.18);
    border-radius: 999px;
    color: #f4faf8;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.06);
    transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.site-nav__link:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.12);
}

.site-nav__link.active {
    border-color: transparent;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
    box-shadow: 0 10px 18px rgba(12, 143, 122, 0.26);
}

.site-nav__link--external {
    background: rgba(216, 132, 52, 0.14);
    border-color: rgba(216, 132, 52, 0.34);
}

.site-main {
    padding: 1.5rem 0 2rem;
}

.site-footer {
    margin-bottom: 1.8rem;
}

.site-footer__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: end;
    padding: 1.2rem 1.25rem;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.76);
    box-shadow: var(--shadow-md);
}

.site-footer__title {
    margin: 0;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--brand-strong);
}

.site-footer__copy {
    margin: 0.35rem 0 0;
    color: var(--ink-soft);
    max-width: 46rem;
}

.site-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    justify-content: flex-end;
}

.site-footer__links a {
    color: var(--brand-strong);
    font-weight: 700;
    text-decoration: none;
}

.site-footer__links a:hover {
    text-decoration: underline;
}

@media (max-width: 920px) {
    .site-header__inner,
    .site-footer__inner {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .site-nav,
    .site-footer__links {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    .site-main,
    .site-footer,
    .site-header__inner {
        width: min(var(--content-width), calc(100% - 1rem));
    }

    .site-main {
        padding-top: 1rem;
    }

    .site-nav__link {
        width: 100%;
    }
}

/* CalculatorWidget.razor.css */
.calc-shell {
    --bg-a: #f3f9f8;
    --bg-b: #fffaf1;
    --panel: #ffffff;
    --panel-soft: #f8fbff;
    --line: #d3e4e0;
    --ink: #1c2b29;
    --ink-soft: #4c6561;
    --accent: #0c8f7a;
    --accent-strong: #08705f;
    --accent-alt: #e17e2f;
    --error-bg: #ffe3e1;
    --error-ink: #7f1d1d;
    --shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    width: min(1100px, 100%);
    margin: 0 auto 2.5rem;
    display: grid;
    gap: 1rem;
    color: var(--ink);
    font-family: "Trebuchet MS", "Lucida Sans Unicode", "Segoe UI", sans-serif;
    line-height: 1.4;
}

.calc-hero,
.calc-toolbar,
.calc-card,
.calc-result,
.calc-history {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
}

.calc-hero {
    padding: 1.2rem 1.3rem;
    background: linear-gradient(120deg, rgba(12, 143, 122, 0.09) 0%, rgba(225, 126, 47, 0.08) 100%), var(--panel);
}

.calc-hero h1 {
    margin: 0.15rem 0 0.4rem;
    font-size: clamp(1.4rem, 3.4vw, 2.05rem);
    letter-spacing: 0.03em;
}

.calc-hero-eyebrow {
    margin: 0;
    color: var(--accent-strong);
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.calc-hero-copy,
.calc-hero-note {
    margin: 0;
    color: var(--ink-soft);
    max-width: 70ch;
}

.calc-hero-note {
    margin-top: 0.65rem;
    font-size: 0.95rem;
}

.calc-hero-actions {
    margin-top: 0.9rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.calc-hero-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.6rem;
    padding: 0.6rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-strong) 100%);
    box-shadow: 0 6px 14px rgba(8, 112, 95, 0.28);
}

.calc-hero-link--alt {
    color: #6b4017;
    background: #fff1e0;
    border: 1px solid #efc49d;
    box-shadow: none;
}

.calc-toolbar {
    padding: 1rem 1.1rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    align-items: end;
}

.calc-field-group {
    display: grid;
    gap: 0.32rem;
}

.calc-field-group label,
.calc-card label,
.result-grid label {
    font-size: 0.8rem;
    color: var(--ink-soft);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.calc-field-group select,
.calc-card input,
.calc-card textarea,
.result-grid textarea {
    width: 100%;
    border: 1px solid #bdd5cf;
    border-radius: var(--radius-sm);
    background: var(--panel-soft);
    color: var(--ink);
    padding: 0.56rem 0.62rem;
}

.calc-field-group select:focus,
.calc-card input:focus,
.calc-card textarea:focus,
.result-grid textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(12, 143, 122, 0.16);
    outline: none;
    background: #ffffff;
}

.calc-key-hint,
.calc-note {
    margin: 0;
    grid-column: 1 / -1;
    font-size: 0.9rem;
}

.calc-key-hint {
    color: var(--ink-soft);
}

.calc-note {
    color: var(--accent-alt);
    font-weight: 600;
}

.calc-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 0.55rem;
    flex-wrap: wrap;
}

.calc-btn {
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 700;
    padding: 0.52rem 1.1rem;
    cursor: pointer;
}

.calc-btn-primary {
    color: #ffffff;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.calc-btn-secondary {
    color: #114a40;
    background: #e5f4f1;
    border-color: #9ccfc5;
}

.calc-btn-ghost {
    color: #7b5228;
    background: #fff4e8;
    border-color: #efc49d;
}

.calc-error {
    border: 1px solid #f4a7a0;
    background: var(--error-bg);
    color: var(--error-ink);
    border-radius: var(--radius-md);
    padding: 0.72rem 0.9rem;
    font-weight: 600;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.calc-card {
    padding: 0.95rem 1rem 1.05rem;
    display: grid;
    gap: 0.55rem;
}

.calc-card h2,
.calc-result h2,
.calc-history h2 {
    margin: 0;
    font-size: 1.05rem;
}

.calc-card textarea {
    min-height: 6rem;
    resize: vertical;
}

.calc-fraction-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
}

.calc-check {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.88rem;
    color: var(--ink-soft);
    text-transform: none;
}

.calc-check input {
    width: auto;
}

.calc-result {
    padding: 0.95rem 1rem 1.05rem;
    background: linear-gradient(180deg, rgba(248, 251, 255, 0.96) 0%, #ffffff 100%);
}

.calc-result.has-result {
    border-color: #b8ddd5;
}

.calc-placeholder {
    margin: 0.65rem 0 0;
    color: var(--ink-soft);
}

.result-header {
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    flex-wrap: wrap;
}

.result-negative-pill {
    background: #ffd8d4;
    color: #8f1f1f;
    font-weight: 700;
    font-size: 0.78rem;
    padding: 0.24rem 0.56rem;
    border-radius: 999px;
}

.result-action {
    color: var(--ink-soft);
    font-size: 0.85rem;
}

.result-grid {
    margin-top: 0.78rem;
    display: grid;
    gap: 0.62rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.result-grid textarea {
    min-height: 5rem;
    resize: vertical;
    font-family: "Cascadia Mono", "Consolas", monospace;
    background: #ffffff;
}

.result-display {
    margin: 0.75rem 0 0;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius-sm);
    background: #eef8f6;
    color: var(--ink);
}

.result-display span {
    color: var(--ink-soft);
    margin-right: 0.35rem;
}

.result-display code {
    color: #164f44;
}

.calc-history {
    padding: 0.95rem 1rem;
}

.calc-history ul {
    list-style: none;
    margin: 0.65rem 0 0;
    padding: 0;
    display: grid;
    gap: 0.45rem;
}

.calc-history li {
    border: 1px solid #d8eae6;
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.62rem;
    display: grid;
    gap: 0.22rem;
    background: #fbfefd;
}

@media (max-width: 900px) {
    .calc-grid,
    .result-grid,
    .calc-toolbar,
    .calc-fraction-grid {
        grid-template-columns: 1fr;
    }
}

/* ConverterWidget.razor.css */
.convert-shell {
    --panel: #ffffff;
    --panel-soft: #f8f8fc;
    --line: #d9ddea;
    --ink: #1f2133;
    --ink-soft: #5d6179;
    --accent: #1f5ae0;
    --accent-strong: #123ea4;
    --accent-alt: #d88a2f;
    --shadow: 0 16px 42px rgba(17, 34, 68, 0.08);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    width: min(1100px, 100%);
    margin: 0 auto 2.5rem;
    display: grid;
    gap: 1rem;
    color: var(--ink);
    font-family: "Trebuchet MS", "Lucida Sans Unicode", "Segoe UI", sans-serif;
}

.convert-hero,
.convert-toolbar,
.convert-card,
.convert-history {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
}

.convert-hero {
    padding: 1.25rem 1.35rem;
    background: linear-gradient(135deg, rgba(31, 90, 224, 0.12) 0%, rgba(216, 138, 47, 0.08) 100%), var(--panel);
}

.convert-hero h1 {
    margin: 0.2rem 0 0.45rem;
    font-size: clamp(1.55rem, 3.5vw, 2.2rem);
}

.convert-hero-eyebrow {
    margin: 0;
    color: var(--accent-strong);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.convert-hero-copy,
.convert-hero-note {
    margin: 0;
    color: var(--ink-soft);
    max-width: 72ch;
}

.convert-hero-note {
    margin-top: 0.7rem;
}

.convert-hero-actions {
    margin-top: 0.95rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.convert-hero-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.6rem;
    padding: 0.62rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.convert-hero-link--alt {
    color: #714414;
    background: #fff1df;
    border: 1px solid #efca9c;
}

.convert-toolbar {
    padding: 1rem 1.1rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    align-items: end;
}

.convert-field-group,
.convert-card {
    display: grid;
    gap: 0.55rem;
}

.convert-field-group label,
.convert-card label,
.convert-result-grid label,
.convert-meta-grid label {
    font-size: 0.8rem;
    color: var(--ink-soft);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.convert-field-group select,
.convert-card input,
.convert-card textarea,
.convert-result-grid textarea,
.convert-meta-grid textarea {
    width: 100%;
    border: 1px solid #c6cee3;
    border-radius: var(--radius-sm);
    background: var(--panel-soft);
    color: var(--ink);
    padding: 0.56rem 0.62rem;
}

.convert-field-group select:focus,
.convert-card input:focus,
.convert-card textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(31, 90, 224, 0.14);
    background: #ffffff;
}

.convert-key-hint {
    margin: 0;
    color: var(--ink-soft);
}

.convert-actions {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.convert-btn {
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 700;
    padding: 0.55rem 1.1rem;
    cursor: pointer;
}

.convert-btn-primary {
    color: #ffffff;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.convert-btn-secondary {
    color: #183c8f;
    background: #e7efff;
    border-color: #aec2ff;
}

.convert-btn-ghost {
    color: #734311;
    background: #fff4e5;
    border-color: #efca9c;
}

.convert-error {
    border: 1px solid #f4a7a0;
    background: #ffe3e1;
    color: #7f1d1d;
    border-radius: var(--radius-md);
    padding: 0.72rem 0.9rem;
    font-weight: 600;
}

.convert-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.convert-card {
    padding: 1rem;
}

.convert-card h2,
.convert-history h2 {
    margin: 0;
    font-size: 1.05rem;
}

.convert-card textarea {
    min-height: 6rem;
    resize: vertical;
}

.convert-fraction-grid,
.convert-result-grid,
.convert-meta-grid {
    display: grid;
    gap: 0.65rem;
}

.convert-fraction-grid,
.convert-result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.convert-card--result.has-result {
    border-color: #b9c8ff;
}

.convert-placeholder {
    margin: 0.65rem 0 0;
    color: var(--ink-soft);
}

.convert-result-header {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    flex-wrap: wrap;
}

.convert-negative-pill {
    background: #ffd8d4;
    color: #8f1f1f;
    font-weight: 700;
    font-size: 0.78rem;
    padding: 0.24rem 0.56rem;
    border-radius: 999px;
}

.convert-action {
    color: var(--ink-soft);
    font-size: 0.85rem;
}

.convert-display {
    margin: 0.75rem 0 0;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius-sm);
    background: #eef2ff;
}

.convert-display span {
    color: var(--ink-soft);
    margin-right: 0.35rem;
}

.convert-display code {
    color: #17357f;
}

.convert-check {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--ink-soft);
}

.convert-check input {
    width: auto;
}

.convert-history {
    padding: 1rem;
}

.convert-history ul {
    list-style: none;
    margin: 0.65rem 0 0;
    padding: 0;
    display: grid;
    gap: 0.45rem;
}

.convert-history li {
    border: 1px solid #d9ddea;
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.62rem;
    display: grid;
    gap: 0.22rem;
    background: #fcfcff;
}

@media (max-width: 900px) {
    .convert-toolbar,
    .convert-grid,
    .convert-fraction-grid,
    .convert-result-grid {
        grid-template-columns: 1fr;
    }
}

/* EncryptionWidget.razor.css */
.cipher-shell {
    --panel: #ffffff;
    --panel-soft: #f6f8fb;
    --line: #d8dee8;
    --ink: #1d2433;
    --ink-soft: #5b667b;
    --accent: #0f7f78;
    --accent-strong: #0a5d58;
    --accent-alt: #c95b2d;
    --shadow: 0 16px 42px rgba(15, 24, 39, 0.1);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    width: min(1100px, 100%);
    margin: 0 auto 2.5rem;
    display: grid;
    gap: 1rem;
    color: var(--ink);
    font-family: "Trebuchet MS", "Lucida Sans Unicode", "Segoe UI", sans-serif;
}

.cipher-hero,
.cipher-card,
.cipher-explainer-grid article {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
}

.cipher-hero {
    padding: 1.25rem 1.35rem;
    background: linear-gradient(135deg, rgba(10, 93, 88, 0.12) 0%, rgba(201, 91, 45, 0.1) 100%), var(--panel);
}

.cipher-hero h1 {
    margin: 0.2rem 0 0.45rem;
    font-size: clamp(1.55rem, 3.5vw, 2.25rem);
}

.cipher-hero-eyebrow {
    margin: 0;
    color: var(--accent-strong);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.cipher-hero-copy,
.cipher-hero-warning {
    margin: 0;
    max-width: 75ch;
}

.cipher-hero-copy {
    color: var(--ink-soft);
}

.cipher-hero-warning {
    margin-top: 0.7rem;
    color: #8b2f1f;
    font-weight: 600;
}

.cipher-hero-actions {
    margin-top: 0.95rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.cipher-hero-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.6rem;
    padding: 0.62rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.cipher-hero-link--alt {
    color: #6a3f12;
    background: #fff0de;
    border: 1px solid #efc49d;
}

.cipher-explainer-grid,
.cipher-grid {
    display: grid;
    gap: 0.9rem;
}

.cipher-explainer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cipher-explainer-grid article,
.cipher-card {
    padding: 1rem;
}

.cipher-explainer-grid h2,
.cipher-card h2 {
    margin: 0;
    font-size: 1.05rem;
}

.cipher-explainer-grid p,
.cipher-summary,
.cipher-placeholder,
.cipher-field-note {
    margin: 0.6rem 0 0;
    color: var(--ink-soft);
    line-height: 1.6;
}

.cipher-summary--warning {
    color: #8b2f1f;
    font-weight: 600;
}

.cipher-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cipher-card {
    display: grid;
    gap: 0.55rem;
}

.cipher-card label,
.cipher-output-grid label {
    font-size: 0.8rem;
    color: var(--ink-soft);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.cipher-card input,
.cipher-card textarea,
.cipher-output-grid textarea {
    width: 100%;
    border: 1px solid #c5cfdf;
    border-radius: var(--radius-sm);
    background: var(--panel-soft);
    color: var(--ink);
    padding: 0.56rem 0.62rem;
}

.cipher-card input:focus,
.cipher-card textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(15, 127, 120, 0.15);
    background: #ffffff;
}

.cipher-card textarea {
    min-height: 5rem;
    resize: vertical;
}

.cipher-detected-radix {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.7rem 0.85rem;
    border: 1px solid #c5cfdf;
    border-radius: var(--radius-sm);
    background: linear-gradient(145deg, rgba(15, 127, 120, 0.08) 0%, rgba(255, 240, 222, 0.9) 100%);
}

.cipher-detected-radix__label {
    font-size: 0.8rem;
    color: var(--ink-soft);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.cipher-detected-radix__value {
    font-size: 1.05rem;
    color: var(--accent-strong);
}

.cipher-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.cipher-btn {
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 700;
    padding: 0.55rem 1.1rem;
    cursor: pointer;
}

.cipher-btn-primary {
    color: #ffffff;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.cipher-btn-ghost {
    color: #6a3f12;
    background: #fff0de;
    border-color: #efc49d;
}

.cipher-error {
    border: 1px solid #f4a7a0;
    background: #ffe3e1;
    color: #7f1d1d;
    border-radius: var(--radius-md);
    padding: 0.72rem 0.9rem;
    font-weight: 600;
}

.cipher-strength-row {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.cipher-strength-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(145deg, var(--accent-alt) 0%, #9d3e18 100%);
}

.cipher-strength-meta {
    color: var(--ink-soft);
    font-size: 0.9rem;
}

.cipher-output-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.7rem;
}

.cipher-output-grid textarea {
    min-height: 4.75rem;
    resize: vertical;
}

@media (max-width: 960px) {
    .cipher-explainer-grid,
    .cipher-grid,
    .cipher-output-grid {
        grid-template-columns: 1fr;
    }
}

/* Calculator.razor.css */
.calculator-page {
    padding-top: 0.35rem;
}

@media (min-width: 920px) {
    .calculator-page {
        padding-top: 0.65rem;
    }
}

/* Converter.razor.css */
.converter-page {
    padding-top: 0.35rem;
}

@media (min-width: 920px) {
    .converter-page {
        padding-top: 0.65rem;
    }
}

/* Encryption.razor.css */
.encryption-page {
    padding-top: 0.35rem;
}

@media (min-width: 920px) {
    .encryption-page {
        padding-top: 0.65rem;
    }
}