/* ============================================================================
   Mergulho Virtual — Backend Web UI
   Ocean‑themed design system for the admin/data interfaces.
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ----- Design tokens -------------------------------------------------------- */
:root {
    --bg:           #eef4f8;
    --bg-grad-1:    #dbeafe;
    --bg-grad-2:    #ecfeff;
    --surface:      #ffffff;
    --surface-2:    #f8fafc;
    --surface-hov:  #f1f5f9;
    --border:       #e2e8f0;
    --border-strong:#cbd5e1;

    --text:         #0f172a;
    --text-2:       #334155;
    --text-muted:   #64748b;
    --text-faint:   #94a3b8;
    --on-primary:   #f0f9ff;

    --primary:      #0b3b5e;
    --primary-2:    #0c4a6e;
    --primary-3:    #075985;
    --accent:       #06b6d4;
    --accent-2:     #0891b2;
    --teal:         #14b8a6;
    --coral:        #fb7185;

    --success:      #059669;
    --success-bg:   #d1fae5;
    --danger:       #e11d48;
    --danger-2:     #be123c;
    --danger-bg:    #ffe4e6;
    --warning:      #d97706;
    --warning-bg:   #fef3c7;
    --info:         #0284c7;
    --info-bg:      #e0f2fe;

    --radius-sm:    6px;
    --radius:       10px;
    --radius-lg:    16px;
    --radius-xl:    20px;

    --shadow-sm:    0 1px 2px rgba(15, 23, 42, .05);
    --shadow:       0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-md:    0 4px 12px rgba(15, 23, 42, .08), 0 2px 4px rgba(15, 23, 42, .04);
    --shadow-lg:    0 12px 32px rgba(12, 74, 110, .12), 0 4px 12px rgba(15, 23, 42, .06);

    --header-grad:  linear-gradient(135deg, #062539 0%, #0c4a6e 55%, #0e7490 100%);

    --content-w:    1200px;
    --content-narrow-w: 880px;

    --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    --transition:   180ms cubic-bezier(.4, 0, .2, 1);
}

/* ----- Reset / base --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    background:
        radial-gradient(60% 50% at 100% 0%, rgba(6, 182, 212, .08) 0%, transparent 60%),
        radial-gradient(50% 40% at 0% 100%, rgba(14, 116, 144, .07) 0%, transparent 60%),
        linear-gradient(180deg, var(--bg-grad-1) 0%, var(--bg) 220px, var(--bg) 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary-3);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 {
    margin: 0;
    color: var(--text);
    font-weight: 700;
    letter-spacing: -.01em;
    line-height: 1.2;
}
h1 { font-size: 1.9rem; letter-spacing: -.02em; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.05rem; font-weight: 600; }

p { margin: 0; }

code, pre, .mono { font-family: var(--font-mono); }

/* ----- Layout --------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--header-grad);
    color: var(--on-primary);
    box-shadow: var(--shadow-md);
    backdrop-filter: saturate(160%);
}

.site-header__inner {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--on-primary);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -.01em;
}
.brand:hover { color: var(--on-primary); }
.brand__logo {
    width: 32px; height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, #22d3ee 0%, #0891b2 100%);
    display: grid; place-items: center;
    box-shadow: 0 6px 14px rgba(6, 182, 212, .35), inset 0 1px 0 rgba(255,255,255,.3);
}
.brand__title {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.brand__title small {
    font-size: .7rem;
    font-weight: 500;
    color: rgba(255, 255, 255, .6);
    text-transform: uppercase;
    letter-spacing: .12em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}
.site-nav a {
    color: rgba(255, 255, 255, .8);
    font-weight: 500;
    font-size: .92rem;
    padding: 8px 14px;
    border-radius: 8px;
    transition: background var(--transition), color var(--transition);
}
.site-nav a:hover { background: rgba(255, 255, 255, .1); color: var(--on-primary); }
.site-nav a.is-active {
    color: var(--on-primary);
    background: rgba(255, 255, 255, .14);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
}

.site-main {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 32px 24px 64px;
}
.site-main--narrow { max-width: var(--content-narrow-w); }

.site-footer {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 24px;
    color: var(--text-muted);
    font-size: .85rem;
    text-align: center;
}

/* ----- Page header (inside main) ------------------------------------------- */
.page-header {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 16px 24px;
    margin-bottom: 24px;
}
.page-header__titles { flex: 1 1 auto; min-width: 240px; }
.page-header__eyebrow {
    color: var(--text-muted);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .14em;
    font-weight: 600;
    margin-bottom: 6px;
}
.page-header__subtitle {
    margin-top: 6px;
    color: var(--text-muted);
    font-size: .98rem;
    max-width: 60ch;
}
.page-header__actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: .82rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--primary-3); }
.breadcrumbs__sep { color: var(--text-faint); }

/* ----- Card ----------------------------------------------------------------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.card + .card { margin-top: 18px; }
.card__header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
}
.card__header h2 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
}
.card__header .hint { color: var(--text-muted); font-size: .85rem; }
.card__body { padding: 20px; }
.card__body--flush { padding: 0; }
.card__footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    background: var(--surface-2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

/* ----- Buttons -------------------------------------------------------------- */
.btn {
    --btn-bg: var(--surface);
    --btn-fg: var(--text);
    --btn-bd: var(--border-strong);
    --btn-bg-hov: var(--surface-hov);

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border: 1px solid var(--btn-bd);
    border-radius: var(--radius);
    background: var(--btn-bg);
    color: var(--btn-fg);
    font: inherit;
    font-weight: 600;
    font-size: .92rem;
    line-height: 1;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition),
                color var(--transition), transform var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}
.btn:hover { background: var(--btn-bg-hov); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.btn .icon { width: 16px; height: 16px; flex: 0 0 16px; }

.btn--primary {
    --btn-bg: var(--primary-2);
    --btn-fg: #f0f9ff;
    --btn-bd: var(--primary-2);
    --btn-bg-hov: var(--primary-3);
    box-shadow: 0 6px 18px rgba(12, 74, 110, .22), inset 0 1px 0 rgba(255,255,255,.18);
}
.btn--primary:hover { box-shadow: 0 8px 22px rgba(12, 74, 110, .28), inset 0 1px 0 rgba(255,255,255,.18); }

.btn--accent {
    --btn-bg: var(--accent);
    --btn-fg: #04222f;
    --btn-bd: var(--accent);
    --btn-bg-hov: var(--accent-2);
    box-shadow: 0 6px 18px rgba(6, 182, 212, .25);
}

.btn--danger {
    --btn-bg: var(--danger);
    --btn-fg: #fff;
    --btn-bd: var(--danger);
    --btn-bg-hov: var(--danger-2);
    box-shadow: 0 6px 16px rgba(225, 29, 72, .22);
}

.btn--ghost {
    --btn-bg: transparent;
    --btn-bd: transparent;
    --btn-fg: var(--text-2);
    --btn-bg-hov: var(--surface-hov);
}

.btn--sm { padding: 7px 12px; font-size: .85rem; }
.btn--lg { padding: 12px 22px; font-size: 1rem; }
.btn--block { width: 100%; }

.btn-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ----- Forms ---------------------------------------------------------------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field__label {
    color: var(--text-2);
    font-weight: 600;
    font-size: .85rem;
    letter-spacing: .01em;
}
.field__label .req { color: var(--danger); margin-left: 2px; }
.field__hint { color: var(--text-muted); font-size: .78rem; }

.input, .select, .textarea {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    font-size: .95rem;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm) inset;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.input::placeholder, .textarea::placeholder { color: var(--text-faint); }
.input:hover, .select:hover, .textarea:hover { border-color: #9ab1c8; }
.input:focus, .select:focus, .textarea:focus {
    outline: none;
    border-color: var(--accent-2);
    box-shadow: 0 0 0 4px rgba(6, 182, 212, .15);
}
.input[readonly], .input:disabled, .select:disabled, .textarea[readonly] {
    background: var(--surface-2);
    color: var(--text-muted);
    cursor: default;
}
.textarea { min-height: 110px; resize: vertical; line-height: 1.5; }

.select {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2364748b' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'><path d='M4 6l4 4 4-4'/></svg>");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px 16px;
    padding-right: 36px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px 20px;
}
.form-grid .span-2 { grid-column: span 2; }
.form-grid .span-full { grid-column: 1 / -1; }
@media (max-width: 640px) {
    .form-grid .span-2 { grid-column: 1 / -1; }
}

.input-group {
    display: grid;
    grid-template-columns: 1fr 1fr 1.2fr;
    gap: 8px;
}

/* Section heading inside cards for grouped forms */
.section-title {
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: 0 0 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-title::before {
    content: '';
    width: 14px; height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

/* Filter bar inside list pages */
.filter-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px 16px;
    align-items: end;
}
.filter-bar .filter-actions {
    display: flex;
    gap: 8px;
    align-self: end;
    justify-self: end;
    grid-column: -2 / -1;
}
@media (max-width: 720px) {
    .filter-bar .filter-actions { grid-column: 1 / -1; justify-self: stretch; }
    .filter-bar .filter-actions .btn { flex: 1; }
}

/* Sticky submit bar for long forms */
.action-bar {
    position: sticky;
    bottom: 0;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0) 0%, var(--surface-2) 40%);
    padding: 18px 0 0;
    margin-top: 8px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ----- Tables --------------------------------------------------------------- */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: .92rem;
}
.table thead th {
    text-align: left;
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1;
}
.table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-2);
    vertical-align: middle;
}
.table tbody tr {
    transition: background var(--transition);
}
.table tbody tr:hover { background: var(--surface-hov); }
.table tbody tr:last-child td { border-bottom: 0; }

.table .registro {
    font-family: var(--font-mono);
    font-size: .82rem;
    color: var(--text-muted);
}

.table .col-thumb { width: 72px; padding-right: 0; }

.thumb {
    position: relative;
    display: block;
    width: 56px;
    height: 56px;
    border-radius: 10px;
    overflow: hidden;
    background: linear-gradient(135deg, #062539 0%, #0c4a6e 65%, #0e7490 100%);
    box-shadow: 0 1px 2px rgba(15, 23, 42, .12), inset 0 0 0 1px rgba(255,255,255,.04);
    transition: transform var(--transition), box-shadow var(--transition);
}
.thumb:hover {
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 6px 16px rgba(12, 74, 110, .25);
}
.thumb__placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: rgba(255,255,255,.5);
    z-index: 0;
}
.thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    z-index: 1;
    background: transparent;
}
.table .nome-popular { color: var(--text); font-weight: 600; }
.table .nome-cientifico { font-style: italic; color: var(--text-muted); }
.table .actions { text-align: right; white-space: nowrap; }
.table .actions a { font-weight: 600; }

/* ----- Badge / pill --------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    background: var(--info-bg);
    color: var(--info);
}
.badge--app    { background: #ede9fe; color: #6d28d9; }
.badge--foto   { background: var(--info-bg); color: var(--info); }
.badge--video  { background: #fce7f3; color: #be185d; }
.badge--success{ background: var(--success-bg); color: var(--success); }
.badge--warning{ background: var(--warning-bg); color: var(--warning); }
.badge--muted  { background: var(--surface-hov); color: var(--text-muted); }

/* ----- Pagination ----------------------------------------------------------- */
.pagination {
    display: flex;
    align-items: center;
    gap: 12px;
}
.pagination .page-info {
    color: var(--text-muted);
    font-size: .9rem;
}
.pagination .page-info strong { color: var(--text); font-weight: 700; }
.pagination__nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-wrap: wrap;
}
.page-jump {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.page-jump .input--sm {
    width: 72px;
    padding: 7px 10px;
    font-size: .85rem;
}
.input--sm {
    padding: 7px 10px;
    font-size: .85rem;
}

/* ----- Empty state ---------------------------------------------------------- */
.empty {
    padding: 56px 24px;
    text-align: center;
    color: var(--text-muted);
}
.empty__icon {
    width: 56px; height: 56px;
    margin: 0 auto 14px;
    border-radius: 50%;
    background: var(--info-bg);
    display: grid; place-items: center;
    color: var(--info);
}
.empty h3 { color: var(--text); margin-bottom: 6px; }

/* ----- Detail view layout --------------------------------------------------- */
.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
@media (max-width: 880px) { .detail-grid { grid-template-columns: 1fr; } }

.photo-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.photo-card a { display: block; }
.photo-card img {
    width: 100%;
    height: auto;
    display: block;
    background:
        linear-gradient(135deg, #062539 0%, #0c4a6e 100%);
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 400ms cubic-bezier(.2, .8, .2, 1);
}
.photo-card:hover img { transform: scale(1.015); }
.photo-card__placeholder {
    aspect-ratio: 4 / 3;
    display: grid;
    place-items: center;
    color: rgba(255,255,255,.65);
    background: linear-gradient(135deg, #062539 0%, #0c4a6e 65%, #0e7490 100%);
    text-align: center;
    padding: 24px;
    font-size: .9rem;
}
.photo-card__caption {
    padding: 10px 14px;
    font-size: .8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    background: var(--surface-2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.kv-list {
    display: grid;
    grid-template-columns: 1fr;
}
.kv-list .row {
    display: grid;
    grid-template-columns: minmax(140px, 38%) 1fr;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.kv-list .row:last-child { border-bottom: 0; }
.kv-list .k {
    color: var(--text-muted);
    font-size: .82rem;
    font-weight: 600;
}
.kv-list .v {
    color: var(--text);
    word-break: break-word;
}
.kv-list .v--muted { color: var(--text-faint); }

details.extra-fields {
    margin-top: 18px;
    border-top: 1px dashed var(--border);
    padding-top: 14px;
}
details.extra-fields > summary {
    cursor: pointer;
    color: var(--text-muted);
    font-weight: 600;
    font-size: .85rem;
    list-style: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
details.extra-fields > summary::-webkit-details-marker { display: none; }
details.extra-fields > summary::before {
    content: '▸';
    color: var(--text-faint);
    transition: transform var(--transition);
    font-size: .8em;
}
details.extra-fields[open] > summary::before { transform: rotate(90deg); }

/* Danger zone */
.danger-zone {
    margin-top: 24px;
    border: 1px solid #fecdd3;
    background: #fff1f2;
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
}
.danger-zone__text strong { color: var(--danger-2); }
.danger-zone__text p { color: #9f1239; font-size: .9rem; max-width: 50ch; margin-top: 2px; }

/* ----- Utility -------------------------------------------------------------- */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.muted   { color: var(--text-muted); }
.faint   { color: var(--text-faint); }
.small   { font-size: .85rem; }
.center  { text-align: center; }
.mono    { font-family: var(--font-mono); }
.spacer  { flex: 1; }

@media (max-width: 640px) {
    .site-main { padding: 20px 16px 48px; }
    h1 { font-size: 1.55rem; }
    .card__body { padding: 16px; }
    .card__header { padding: 14px 16px; }
    .site-nav a { padding: 8px 10px; font-size: .85rem; }
    .brand__title small { display: none; }
    .table thead th, .table tbody td { padding: 10px 12px; }
}