:root {
    --bg: #030303;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-hover: rgba(255, 255, 255, 0.08);
    --border: rgba(255, 255, 255, 0.1);
    --accent: #00f2fe;
    --accent-glow: rgba(0, 242, 254, 0.3);
    --text: #ffffff;
    --text-dim: #a0a0a0;
    --nav-blur: rgba(3, 3, 3, 0.85);
    --radius: 24px;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Background Effects */
.bg-glow {
    position: fixed;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at 50% 50%, #1a1a2e 0%, #030303 100%);
    z-index: -1;
}

.bg-glow::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 40%;
    height: 40%;
    background: var(--accent-glow);
    filter: blur(150px);
    border-radius: 50%;
    animation: pulse 10s infinite alternate;
}

@keyframes pulse {
    from { transform: scale(1); opacity: 0.3; }
    to { transform: scale(1.5); opacity: 0.6; }
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--nav-blur);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    height: 28px;
    object-fit: contain;
}

.logo span {
    font-weight: 800;
    letter-spacing: 2px;
    font-size: 1.1rem;
    background: linear-gradient(to right, #fff, #999);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    border-radius: 50px;
    border: 1px solid var(--border);
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-btn.active {
    background: white;
    color: black;
}

.nav-btn:hover:not(.active) {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

/* Main Content */
main {
    padding-top: 10rem;
    padding-bottom: 5rem;
}

.tab-content {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: 0.5s var(--transition);
}

.tab-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-dim);
    font-size: 1.1rem;
}

.search-bar {
    max-width: 500px;
    margin: 2rem auto 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-bar input {
    background: transparent;
    border: none;
    color: white;
    width: 100%;
    outline: none;
    font-size: 1rem;
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 180px;
    gap: 1.5rem;
}

.bento-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: 0.4s var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: white;
}

.bento-item:hover {
    transform: translateY(-8px);
    background: var(--card-hover);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

/* Featured Items */
.bento-item.featured {
    grid-column: span 2;
    grid-row: span 2;
    justify-content: flex-start;
    align-items: flex-start;
}

.item-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-icon {
    color: var(--accent);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.color-purple { --accent: #a78bfa; }
.color-blue { --accent: #38bdf8; }

.featured h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.featured p {
    color: var(--text-dim);
    margin-bottom: 2rem;
}

.btn-item {
    background: var(--accent);
    color: black;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    width: fit-content;
}

/* Portal Cards */
.portal-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
    transition: 0.3s;
}

.portal-card:hover .portal-icon {
    transform: scale(1.1);
}

.portal-card .portal-name {
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
}

/* Spreadsheets Section */
.spreadsheet-container {
    display: flex;
    gap: 1.5rem;
    height: 80vh;
}

.spreadsheet-menu {
    width: 250px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.spreadsheet-menu h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--text-dim);
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.spreadsheet-menu ul {
    list-style: none;
}

.sheet-btn {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 12px 1rem;
    border-radius: 12px;
    cursor: pointer;
    margin-bottom: 0.5rem;
    font-weight: 500;
    transition: 0.3s;
}

.sheet-btn.active {
    background: rgba(255,255,255,0.05);
    color: white;
    border-left: 3px solid var(--accent);
}

.spreadsheet-viewer {
    flex-grow: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}

.spreadsheet-viewer iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.loader {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 10;
    display: none;
}

.animate-spin {
    animation: spin 1s linear infinite;
    font-size: 2rem;
    color: var(--accent);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    transition: 0.3s;
}

.footer-links a:hover {
    color: white;
}

/* Responsive */
@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    main { padding-top: 7rem; }
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 150px;
    }
    .bento-item.featured {
        grid-column: span 2;
    }
    .spreadsheet-container {
        flex-direction: column;
        height: auto;
    }
    .spreadsheet-menu {
        width: 100%;
    }
    .spreadsheet-viewer {
        height: 500px;
    }
    .mobile-menu-toggle { display: inline-flex; }
    .nav-links {
        display: none;
        position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; border-radius: 0;
        background: var(--bg); padding: 1rem;
    }
    .nav-links.open { display: flex; }
}

@media (max-width: 480px) {
    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }
    .bento-item {
        padding: 2rem;
    }
}

/* ---------- Workspace 2.0 genérico ---------- */
[hidden] { display: none !important; }

.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;
}

.skip-link {
    position: absolute; left: 1rem; top: -4rem; z-index: 2000;
    background: var(--accent); color: #000; padding: .5rem 1rem; border-radius: 8px; font-weight: 700;
}
.skip-link:focus { top: 1rem; }

a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--accent); outline-offset: 3px;
}

.logo-icon { font-size: 1.6rem; color: var(--accent); }

.mobile-menu-toggle {
    display: none; align-items: center; justify-content: center;
    width: 44px; height: 44px; font-size: 1.4rem;
    background: transparent; color: var(--text);
    border: 1px solid var(--border); border-radius: 12px; cursor: pointer;
}

.demo-banner {
    display: block;
    margin: 0 auto 2.5rem; max-width: 760px;
    padding: .75rem 1rem; border: 1px dashed var(--border); border-radius: 12px;
    color: var(--text-dim); font-size: .9rem;
}
.demo-banner a { color: var(--accent); }
.demo-banner .ph { margin-right: .4rem; vertical-align: -2px; }

.queue-stats { color: var(--text) !important; font-weight: 600; margin-bottom: 1.25rem !important; }

.source-tag {
    margin-top: .75rem; font-size: .75rem; color: var(--text-dim);
    border: 1px solid var(--border); border-radius: 50px; padding: 2px 10px; width: fit-content;
}

.portal-cat { font-size: .75rem; color: var(--text-dim); margin-top: .2rem; }

.empty-state { text-align: center; color: var(--text-dim); margin-top: 2rem; }

.spreadsheet-menu h2 { font-size: 1rem; margin-bottom: 1rem; }

.table-wrap { overflow: auto; height: 100%; padding: 1.5rem; }
.demo-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.demo-table caption { text-align: left; color: var(--text-dim); margin-bottom: 1rem; font-size: .85rem; }
.demo-table th, .demo-table td { text-align: left; padding: .75rem 1rem; border-bottom: 1px solid var(--border); }
.demo-table th { color: var(--text-dim); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
.demo-table tbody tr:hover { background: var(--card-hover); }

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

@media (max-width: 768px) {
    .mobile-menu-toggle { display: inline-flex; }
}