:root {
    --bg: oklch(0.99 0 0);
    --surface: oklch(1 0 0);
    --surface-2: oklch(0.98 0 0);
    --border: oklch(0.91 0 0);
    --ink: oklch(0.24 0.01 260);
    --ink-soft: oklch(0.46 0.01 260);
    --accent: oklch(0.55 0.03 260);
    --radius: 12px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px oklch(0.2 0 0 / 0.06);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

/* Neutralize Bootstrap's default blue -> ink for a near-monochrome system */
:root {
    --bs-primary: var(--ink);
    --bs-link-color: var(--ink);
    --bs-link-hover-color: var(--ink-soft);
    --bs-border-color: var(--border);
    --bs-body-color: var(--ink);
    --bs-body-bg: var(--bg);
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3 {
    text-wrap: balance;
}

/* Near-monochrome primary button */
.btn-primary {
    --bs-btn-bg: var(--ink);
    --bs-btn-border-color: var(--ink);
    --bs-btn-hover-bg: oklch(0.2 0.01 260);
    --bs-btn-hover-border-color: oklch(0.2 0.01 260);
    --bs-btn-active-bg: oklch(0.18 0.01 260);
    --bs-btn-active-border-color: oklch(0.18 0.01 260);
    --bs-btn-disabled-bg: var(--ink);
    --bs-btn-disabled-border-color: var(--ink);
    color: #fff;
}

.btn-outline-primary {
    --bs-btn-color: var(--ink);
    --bs-btn-border-color: var(--border);
    --bs-btn-hover-bg: var(--surface-2);
    --bs-btn-hover-color: var(--ink);
    --bs-btn-hover-border-color: var(--ink-soft);
    --bs-btn-active-bg: var(--surface-2);
    --bs-btn-active-color: var(--ink);
}

.link-primary {
    color: var(--ink) !important;
}

.link-primary:hover {
    color: var(--ink-soft) !important;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem oklch(0.55 0.03 260 / 0.22);
}

/* Progress bars share the ink fill across the app */
.progress {
    background: var(--border);
}

.progress-bar {
    background: var(--ink);
}


/* ---- Navbar ---- */
.labshare-nav {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: oklch(1 0 0 / 0.82);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}

.labshare-nav__inner {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: 64px;
}

.labshare-nav__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 650;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: var(--ink);
    text-decoration: none;
}

.labshare-nav__brand:hover {
    color: var(--ink);
}

.labshare-nav__nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.labshare-nav__link {
    color: var(--ink-soft);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    text-decoration: none;
    transition: color 0.18s ease, background-color 0.18s ease;
}

.labshare-nav__link:hover {
    color: var(--ink);
    background: var(--surface-2);
}

.labshare-nav__link.is-active {
    color: var(--ink);
    background: var(--surface-2);
}

.labshare-nav__cta {
    margin-left: 0.4rem;
    display: inline-flex;
    align-items: center;
    background: var(--ink);
    color: #fff;
    border: 1px solid var(--ink);
    font-weight: 550;
    font-size: 0.92rem;
    padding: 0.45rem 1.05rem;
    border-radius: 9px;
    text-decoration: none;
    transition: background-color 0.18s ease;
}

.labshare-nav__cta:hover {
    background: oklch(0.2 0.01 260);
    border-color: oklch(0.2 0.01 260);
    color: #fff;
}

.labshare-nav__user {
    margin-left: 0.4rem;
}

.labshare-nav__avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--ink);
    font-weight: 650;
    font-size: 0.9rem;
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: border-color 0.18s ease, background-color 0.18s ease;
}

.labshare-nav__avatar:hover,
.labshare-nav__avatar.show {
    border-color: var(--ink-soft);
    background: var(--surface);
}

.labshare-nav__avatar::after {
    display: none;
}

.labshare-nav__menu {
    margin-top: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    background: var(--surface);
    min-width: 220px;
}

.labshare-nav__menu-head {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    padding: 0.4rem 0.6rem 0.6rem;
}

.labshare-nav__menu-name {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--ink);
    word-break: break-word;
}

.labshare-nav__menu-mail {
    font-size: 0.82rem;
    color: var(--ink-soft);
    word-break: break-word;
}

.labshare-nav__menu .dropdown-divider {
    border-color: var(--border);
    margin: 0.25rem 0;
}

.labshare-nav__menu-item {
    width: 100%;
    text-align: left;
    font-size: 0.92rem;
    color: var(--ink);
    border-radius: 7px;
    padding: 0.5rem 0.6rem;
    background: transparent;
    border: 0;
}

.labshare-nav__menu-item:hover {
    background: var(--surface-2);
    color: var(--ink);
}

/* Hamburger */
.labshare-nav__toggler {
    margin-left: auto;
    width: 42px;
    height: 38px;
    display: none;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--surface);
    cursor: pointer;
}

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

.labshare-nav__bars,
.labshare-nav__bars::before,
.labshare-nav__bars::after {
    content: "";
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--ink);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.labshare-nav__bars {
    position: relative;
}

.labshare-nav__bars::before {
    position: absolute;
    top: -6px;
    left: 0;
}

.labshare-nav__bars::after {
    position: absolute;
    top: 6px;
    left: 0;
}

.labshare-nav__toggler[aria-expanded="true"] .labshare-nav__bars {
    background: transparent;
}

.labshare-nav__toggler[aria-expanded="true"] .labshare-nav__bars::before {
    transform: translateY(6px) rotate(45deg);
}

.labshare-nav__toggler[aria-expanded="true"] .labshare-nav__bars::after {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 767.98px) {
    .labshare-nav__toggler {
        display: inline-flex;
    }

    .labshare-nav__collapse {
        padding-top: 0.5rem;
        padding-bottom: 0.75rem;
        border-top: 1px solid var(--border);
        margin-top: 0.5rem;
    }

    .labshare-nav__nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0.15rem;
    }

    .labshare-nav__link {
        padding: 0.65rem 0.85rem;
    }

    .labshare-nav__cta {
        margin: 0.4rem 0 0;
        justify-content: center;
    }

    .labshare-nav__user {
        margin: 0.4rem 0 0;
        display: flex;
        justify-content: flex-start;
    }

    .labshare-nav__avatar {
        width: 42px;
        height: 42px;
    }
}

.files-shell {
    max-width: 1080px;
    margin: 2rem auto 4rem;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}