/* ============================================================
   Design tokens
   ============================================================ */
:root {
    /* Typography */
    --font-family-base: 'Roboto', system-ui, -apple-system, 'Helvetica Neue', sans-serif;

    --font-size-xs:  0.78rem;
    --font-size-sm:  0.88rem;
    --font-size-md:  1rem;
    --font-size-lg:  1.15rem;
    --font-size-xl:  1.35rem;
    --font-size-2xl: 1.6rem;
    --font-size-3xl: 2rem;

    --line-height-tight: 1.25;
    --line-height-base:  1.5;
    --font-weight-bold:  600;

    /* Spacing (rem scale; 1rem == html font-size) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;

    /* Colors — neutrals */
    --color-surface:        #939393;
    --color-surface-raised: #a7aba7;
    --color-surface-sunken: #777777;

    --color-border:      #707070;
    --color-border-soft: #808080;

    /* Colors — text */
    --color-text:          #1a1b1d;
    --color-text-inverse:  #ffffff;
    --color-text-muted:    #4a4a4a;
    --color-text-disabled: #7a7a7a;

    /* Colors — accent */
    --color-accent:        #79cb3e;
    --color-accent-hover:  #7c9271;
    --color-accent-active: #8cb96f;
    --color-accent-soft:   rgba(70, 129, 60, 0.18);

    /* Colors — nav variant */
    --color-nav:       #8095a0;
    --color-nav-hover: #678a99;

    /* Colors — disabled state */
    --color-disabled-bg: #232323;

    /* Colors — semantic */
    --color-danger:  #f44336;
    --color-success: #77ec88;

    /* Radii */
    --radius-sm: 3px;
    --radius-md: 5px;
    --radius-lg: 10px;

    /* Shadows */
    --shadow-card: 0 2px 6px rgba(0, 0, 0, 0.35);

    /* Layout */
    --container-max:  1800px;
    --content-narrow: 720px;
    --content-medium: 1200px;

    --transition: 0.2s ease;
}

/* ============================================================
   Base + responsive root font size
   The whole spacing/type scale is rem-based, so changing the
   root font size here rescales the entire UI consistently.
   ============================================================ */
html {
    font-size: 18px;
}

@media (pointer: coarse) {
    html {
        font-size: var(--font-size-xl) !important;
    }

    body {
        font-size: var(--font-size-xl) !important;
    }

    h1 { font-size: var(--font-size-3xl) !important; }
    h2 { font-size: var(--font-size-3xl) !important; }
    h3 { font-size: var(--font-size-2xl) !important; }
    h4 { font-size: var(--font-size-xl) !important; }
    h5 { font-size: var(--font-size-lg) !important; }
}

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-md);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-surface);
}

h1, h2, h3, h4, h5 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    text-align: center;
    margin: var(--space-3) 0;
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-md); }
h5 { font-size: var(--font-size-sm); }

textarea,
input,
select {
    font-family: inherit;
    font-size: var(--font-size-md);
    width: 100%;
    box-sizing: border-box;
    padding: var(--space-1) var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

textarea {
    border-radius: var(--radius-md);
}

textarea:focus,
input:focus,
select:focus {
    outline: none;
    border-color: var(--color-accent);
}

input[type="checkbox"] {
    width: auto;
    height: auto;
    margin: var(--space-2);
}

a:active {
    color: var(--color-text-inverse);
}

table {
    text-align: center;
    width: 100%;
    border-collapse: collapse;
}

table td {
    padding: var(--space-2);
}

progress {
    width: 100%;
}

/* ============================================================
   Header & query bar
   ============================================================ */
.header-static,
.header-floating {
    background-color: var(--color-surface);
    padding: 0;
    z-index: 2;
    width: 100%;
}

.header-floating {
    position: fixed;
}

.sub_header {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0;
}

.content,
.content-static {
    padding: 0;
}

.query-container {
    display: grid;
    margin: var(--space-2);
    grid-column-gap: var(--space-2);
    grid-row-gap: var(--space-2);
    grid-template-columns: 0.25fr 1fr 4fr 1fr 1fr;
}

#query_element {
    height: 100%;
    width: 100%;
    border-radius: var(--radius-sm);
    font-size: inherit;
}

/* ============================================================
   Menu
   ============================================================ */
.menu-container {
    display: grid;
    margin: var(--space-2);
    grid-column-gap: var(--space-2);
    grid-template-columns: 1fr 1fr 1fr 1fr;
}

@media (pointer: coarse) {
    .query-container {
        margin: var(--space-1);
        grid-column-gap: var(--space-1);
        grid-template-columns: 0.5fr 1fr 3fr 1fr 1fr;
    }

    .menu-container {
        margin: var(--space-1);
        grid-column-gap: var(--space-1);
        grid-row-gap: var(--space-1);
    }

    .icon-header {
        width: 40px;
    }

    .envelope img {
        min-width: 400px;
        min-height: auto;
    }
}

@media (pointer: fine) and (hover: hover) {
    .icon-header {
        width: 24px;
    }
}

/* ============================================================
   Buttons (.button, .button-nav, .button-disabled)
   Same metrics so they line up in any grid; only colors differ.
   ============================================================ */
.button,
.button-nav,
.button-disabled {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text);
    font: inherit;
    transition: background-color var(--transition), color var(--transition);
    cursor: pointer;
}

.button {
    background-color: var(--color-surface-raised);
}

.button:hover {
    background-color: var(--color-accent-hover);
    color: #d3d4d5;
    text-decoration: none;
}

.button:active {
    background-color: #2a2a2a;
}

.button-nav {
    background-color: var(--color-nav);
}

.button-nav:hover {
    background-color: var(--color-nav-hover);
    color: #d3d4d5;
    text-decoration: none;
}

.button-disabled {
    background-color: var(--color-disabled-bg);
    color: var(--color-text-disabled);
    cursor: not-allowed;
}

.button-disabled:hover {
    background-color: var(--color-disabled-bg);
    color: var(--color-text-disabled);
    text-decoration: none;
}

/* gap rule above handles spacing between an icon and a label,
   so no extra image margins needed here. */

/* ============================================================
   Pagination
   ============================================================ */
.pages {
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}

.pages a {
    color: var(--color-text);
    background-color: var(--color-accent-soft);
    padding: var(--space-1) var(--space-3);
    margin: var(--space-1) 0;
    min-width: 1em;
    text-align: center;
    text-decoration: none;
    border: 1px solid var(--color-border);
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-left     { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.page-right    { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.page-separate { border-radius: var(--radius-md); }

.active-page   {
    background-color: var(--color-accent-active) !important;
    font-weight: bold;
}
.inactive-page { cursor: default; }

.pages-selector {
    width: 4.5em;
    display: inline-block;
    box-sizing: border-box;
    /* margin + padding mirror .pages a so the two land at the same height
       inside the flex row regardless of intrinsic input metrics. */
    margin: var(--space-1) 0;
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    text-align: center;
    font: inherit;
    line-height: var(--line-height-base);
}

/* ============================================================
   Lineage / breadcrumb
   ============================================================ */
.location {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.location a,
.location a:hover {
    color: var(--color-text-inverse);
    text-decoration: none;
}

.location h3 {
    margin: 0;
}

/* ============================================================
   Item envelope (thumbnail card)
   ============================================================ */
.envelope-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0;
}

.envelope {
    position: relative;
    display: flex;
    justify-content: center;
    margin: var(--space-1);
    padding: 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.envelope p {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    padding: 0;
    text-align: center;
}

.envelope a,
.envelope a:hover {
    margin: 0;
    padding: 0;
    color: var(--color-text-inverse);
}

.envelope img {
    width: 100%;
    height: 100%;
}

.envelope-video-title {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: var(--space-1) var(--space-2);
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-text-inverse);
    font-size: var(--font-size-md);
}

.triangle-overlay {
    position: absolute;
    top: calc(50% - 80px);
    right: 50%;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.triangle-overlay::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-left: 40px solid transparent;
    border-bottom: 40px solid rgba(255, 255, 255, 0.8);
    border-top: 40px solid transparent;
    top: 50%;
    left: 80%;
    transform: translate(-50%, -50%) rotate(-45deg);
}

.triangle-overlay::after {
    content: '';
    position: absolute;
    top: 10%;
    left: 50%;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.5);
    z-index: -1;
}

.triangle-overlay:hover::before {
    border-bottom-color: rgba(255, 255, 255, 1);
}

.triangle-overlay:hover::after {
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.8);
}

.env-collection img {
    opacity: 0.5;
    z-index: 2;
}

.env-collection p {
    z-index: 1;
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-bold);
    text-shadow: 0 0 20px #000000;
}

.env-collection a {
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-bold);
}

/* ============================================================
   Layout helpers
   ============================================================ */
.narrow-block {
    max-width: var(--content-narrow);
    display: flex;
    flex-direction: column;
    margin: auto;
}

.medium-block {
    max-width: var(--content-medium);
    display: flex;
    flex-direction: column;
    margin: auto;
}

/*
 * Horizontal row of form-field + adjacent icon/action link.
 * Replaces the inline style="display: flex; flex-direction: row;
 * align-items: center" pattern that was sprinkled across upload/
 * update/create templates.
 */
.field-row {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: var(--space-2);
}

.field-row > a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

/*
 * Inputs default to width:100% from the global rule. height-auto
 * keeps them at intrinsic height inside a stretching flex row.
 */
.height-auto {
    height: auto;
    align-self: center;
}

/* ============================================================
   Preview page
   ============================================================ */
.preview-image {
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.preview-image img {
    max-height: 80vh;
    max-width: 80vw;
}

.preview-image a {
    margin: 0;
}

.preview-swipe {
    width: 100%;
    min-width: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface-sunken);
    transition: background-color var(--transition);
}

.preview-swipe:hover {
    background-color: #545454;
}

.preview-swipe-inactive,
.preview-swipe-inactive:hover {
    background-color: transparent;
    cursor: default;
    text-decoration: none;
}

.preview-swipe img {
    height: 2em;
}

.preview-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.preview-video {
    min-width: 700px;
    min-height: 500px;
}

/* ============================================================
   Tags
   ============================================================ */
.tag-box {
    display: inline-block;
    color: var(--color-text);
    background-color: var(--color-accent-soft);
    border: 2px solid var(--color-text);
    border-radius: var(--radius-md);
    margin: var(--space-1);
    padding: var(--space-1) var(--space-2);
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--transition);
}

.tag-box:hover {
    background-color: rgba(70, 129, 60, 0.64);
    color: var(--color-text);
    text-decoration: none;
}

/* ============================================================
   Back-to-top link
   ============================================================ */
.to-top-link,
.to-top-link:hover {
    display: block;
    text-align: center;
    margin: auto;
    color: var(--color-text-inverse);
    text-decoration: none;
}

/* ============================================================
   Upload / media workspace
   ============================================================ */
.upload-container {
    max-width: 1024px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    margin: auto;
}

.upload-element {
    position: relative;
    background-color: var(--color-surface-raised);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin: var(--space-2);
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: var(--space-2);
}

.upload-element img {
    max-width: 100%;
}

.upload-lines {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: var(--space-2);
}

.upload-lines video {
    width: 100%;
}

.float-button-container {
    position: absolute;
    right: -4.5em;
}

.float-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4em;
    height: 4em;
}

#global-status {
    margin-top: var(--space-4);
}

/* ============================================================
   Notifications
   ============================================================ */
.notification {
    padding: var(--space-5);
    margin: var(--space-4) 0;
    border-radius: var(--radius-lg);
}

.small-notification {
    padding: var(--space-1);
    margin: var(--space-1) 0;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    vertical-align: middle;
}

.om-alert {
    background-color: var(--color-danger);
    color: var(--color-text-inverse);
}

.om-announce {
    background-color: var(--color-success);
    color: var(--color-text);
}

.closebtn {
    float: right;
    margin-left: var(--space-4);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
    line-height: 1;
    cursor: pointer;
    transition: color var(--transition);
}

.closebtn:hover {
    color: var(--color-text);
}

/* ============================================================
   Icons
   ============================================================ */
.icon,
.icon-big {
    filter: invert(1);
}

.icon {
    height: 1em;
    width: 1em;
}

.icon-big {
    height: 2em;
    width: 2em;
    margin: 2px;
}

/* ============================================================
   Autocomplete
   ============================================================ */
.guess {
    position: relative;
    display: inline-block;
}

.autocomplete-items {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 99;
    border: 1px solid #d4d4d4;
    border-top: none;
    border-bottom: none;
}

.autocomplete-items div {
    padding: var(--space-2);
    cursor: pointer;
    background-color: var(--color-text-inverse);
    border-bottom: 1px solid #d4d4d4;
}

.autocomplete-items div:hover {
    background-color: #e9e9e9;
}

.autocomplete-active {
    background-color: DodgerBlue !important;
    color: var(--color-text-inverse);
}

.copy-alerts {
    display: inline-block;
    position: absolute;
}

/* ============================================================
   Profile / admin cards
   ============================================================ */
.light-header,
.light-under {
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-lg);
    margin-top: var(--space-3);
}

.light-header {
    background-color: var(--color-surface-raised);
}

.light-under {
    background-color: var(--color-surface);
}