/*
    tclient.com site styles.
    Palette source of truth: Theme/TclientTheme.cs. The :root block below mirrors it for custom CSS.
    Outside :root, use only var(--tc-*) or var(--mud-palette-*) - no hardcoded colors.
*/
:root {
    --tc-bg: #121417;
    --tc-surface: #1C1F24;
    --tc-surface-raised: #16191D;
    --tc-lines: #2E333A;
    --tc-text: #E8EAED;
    --tc-text-secondary: #A9B0BA;
    --tc-accent: #FF7A1A;
    --tc-accent-dark: #E5650A;
    --tc-on-accent: #121417;
    --tc-link: #FF9A50;
    --tc-success: #4ADE80;
    --tc-warning: #FACC15;
    --tc-error: #F87171;
    --tc-info: #60A5FA;
    --tc-mono: "Cascadia Code", Consolas, "Courier New", monospace;
}

/* ---- Layout ---------------------------------------------------------- */

.tc-appbar {
    border-bottom: 1px solid var(--tc-lines);
}

.tc-brand {
    color: var(--tc-accent);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 1px;
    text-decoration: none;
}

    .tc-brand span {
        color: var(--tc-text);
    }

.tc-drawer {
    border-right: 1px solid var(--tc-lines);
}

/* Sidebar: categories are <details> (no script needed), styled like MudNavGroup. The credit sits at the bottom. */
.tc-nav {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 48px);
}

.tc-nav-group > summary {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    list-style: none;
    color: var(--tc-text);
    font-weight: 500;
}

    .tc-nav-group > summary::-webkit-details-marker {
        display: none;
    }

    .tc-nav-group > summary:hover {
        background-color: var(--mud-palette-action-default-hover);
    }

.tc-nav-group[open] > summary {
    color: var(--tc-accent);
}

.tc-nav-chevron {
    transition: transform 0.15s;
}

.tc-nav-group[open] .tc-nav-chevron {
    transform: rotate(180deg);
}

.tc-nav-group .mud-nav-link {
    padding-left: 3.25rem;
}

.tc-powered {
    margin-top: auto;
    padding: 0.75rem 1.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: var(--tc-text-secondary);
}

.tc-main {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

    .tc-main > main {
        flex: 1 0 auto;
        outline: none;
    }

.tc-footer {
    text-align: center;
    padding: 1rem;
    border-top: 1px solid var(--tc-lines);
    background-color: var(--tc-surface-raised);
}

.tc-skip-link {
    position: absolute;
    left: -9999px;
    z-index: 2000;
    padding: 0.5rem 1rem;
    background: var(--tc-accent);
    color: var(--tc-on-accent);
}

    .tc-skip-link:focus {
        left: 1rem;
        top: 1rem;
    }

:focus-visible {
    outline: 2px solid var(--tc-accent);
    outline-offset: 2px;
}

/* FocusOnNavigate moves focus to the page <h1> for screen readers; don't draw a ring around it. */
h1:focus,
h1:focus-visible,
main:focus {
    outline: none;
}

/* ---- Headings & links ------------------------------------------------ */

.tc-section-title {
    color: var(--tc-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--tc-accent);
    padding-bottom: 0.3rem;
    margin-bottom: 0.75rem;
}

.tc-link-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

    .tc-link-list a {
        color: var(--tc-link);
        text-decoration: none;
    }

        .tc-link-list a:hover,
        .tc-link-list a:focus-visible {
            text-decoration: underline;
        }

/* ---- Tool sub-navigation (ToolTabs) ----------------------------------- */

.tool-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-tab {
    padding: 0.35rem 0.9rem;
    border: 1px solid var(--tc-lines);
    border-radius: 999px;
    color: var(--tc-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: border-color 0.15s, color 0.15s;
}

    .tool-tab:hover {
        border-color: var(--tc-accent);
        color: var(--tc-text);
    }

    .tool-tab.active {
        background-color: var(--tc-accent);
        border-color: var(--tc-accent);
        color: var(--tc-on-accent);
        font-weight: 600;
    }

/* ---- Home: IP address hero ------------------------------------------ */

.tc-ip-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    /* Fade in once, then pulse gently (disabled by the prefers-reduced-motion rule below). */
    animation: tc-fade-in 0.6s ease-out, tc-pulse 2s ease-in-out 0.6s infinite;
}

.tc-ip-value {
    color: var(--tc-accent);
    font-size: clamp(1.75rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: 1px;
    word-break: break-all;
}

@keyframes tc-pulse {
    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }
}

@keyframes tc-fade-in {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

/* ---- Copy button (CopyButton + js/tclient.js) ------------------------- */

.tc-copy {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.3rem;
    border: 1px solid var(--tc-lines);
    border-radius: 6px;
    background: transparent;
    color: var(--tc-text-secondary);
    cursor: pointer;
    vertical-align: middle;
}

    .tc-copy:hover {
        color: var(--tc-accent);
        border-color: var(--tc-accent);
    }

    .tc-copy.tc-copied::after {
        content: "Copied";
        position: absolute;
        left: 50%;
        bottom: calc(100% + 4px);
        transform: translateX(-50%);
        padding: 2px 6px;
        border-radius: 4px;
        background: var(--tc-accent);
        color: var(--tc-on-accent);
        font-size: 0.75rem;
        white-space: nowrap;
    }

/* ---- Tool content ----------------------------------------------------- */

.tc-mono,
.tc-json-editor textarea {
    font-family: var(--tc-mono) !important;
    font-size: 0.9rem;
}

.tc-json-editor textarea {
    line-height: 1.4;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.tc-wrap {
    word-break: break-all;
    white-space: normal;
}

.tc-pre {
    white-space: pre;
    font-size: 0.85em;
}

/* ---- Blazor error bar ------------------------------------------------- */

#blazor-error-ui {
    display: none;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 1000;
    width: 100%;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    background: var(--tc-surface);
    color: var(--tc-text);
    border-top: 2px solid var(--tc-warning);
}

    #blazor-error-ui .reload {
        color: var(--tc-link);
    }

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

/* ---- Motion ----------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}

/* ---- Plain (non-interactive) forms on static pages -------------------------- */

.tc-inline-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

.tc-input {
    flex: 1 1 260px;
    max-width: 420px;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--mud-palette-lines-inputs);
    border-radius: 4px;
    background: transparent;
    color: var(--tc-text);
    font: inherit;
}

    .tc-input:focus {
        outline: 2px solid var(--tc-accent);
        outline-offset: 0;
        border-color: var(--tc-accent);
    }

    .tc-input::placeholder {
        color: var(--tc-text-secondary);
    }

/* Visually hidden, still read by screen readers. */
.tc-sr-only {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* File picker (label wraps a visually hidden <input type=file>). */
.tc-file-drop {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: 2px dashed var(--tc-lines);
    border-radius: 8px;
    color: var(--tc-text);
    cursor: pointer;
}

    .tc-file-drop:hover,
    .tc-file-drop:focus-within {
        border-color: var(--tc-accent);
        color: var(--tc-accent);
    }

/* ---- Password tools ------------------------------------------------------- */

.tc-key-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0;
    border-top: 1px solid var(--tc-lines);
}

.tc-password-output {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--tc-lines);
    border-radius: 6px;
    font-size: 1.25rem;
    min-height: 3.5rem;
}

.tc-toggle-selected {
    background-color: var(--tc-accent) !important;
    color: var(--tc-on-accent) !important;
}

/* ---- Security tools ------------------------------------------------------- */

/* Decoded JSON / PEM output: monospace, wraps long base64 lines. */
.tc-code {
    margin: 0;
    font-family: var(--tc-mono);
    font-size: 0.85rem;
    line-height: 1.4;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

/* PEM keeps its 64-character lines; scroll rather than re-wrap. */
.tc-code.tc-pem {
    white-space: pre;
    overflow-x: auto;
}

/* Security headers letter grade: dark text on a status color (all >= 7:1). */
.tc-grade {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 8px;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--tc-on-accent);
    background: var(--tc-error);
}

    .tc-grade[data-grade="good"] {
        background: var(--tc-success);
    }

    .tc-grade[data-grade="fair"] {
        background: var(--tc-warning);
    }

/* Header names in the security headers tables stay on one line. */
.tc-header-name {
    white-space: nowrap;
}

/* Label column of the certificate details table. */
.tc-cert-label {
    width: 200px;
}