:root {
    --bg: #070c18;
    --bg2: #0c1425;
    --bg3: #111c35;
    --surface: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.08);
    --border-h: rgba(255, 255, 255, 0.16);
    --text: #e8edf8;
    --muted: #5a6a8a;
    --accent: #3b82f6;
    --glow-lib: #3b82f6;
    --glow-twodo: #22c55e;
    --glow-graf: #f59e0b;
    --glow-pub: #a855f7;
    --glow-mon: #06b6d4;
    --radius: 16px;
    --font-h: 'Syne', sans-serif;
    --font-m: 'DM Mono', monospace;
}

[data-theme="light"] {
    --bg: #f0f4ff;
    --bg2: #e4ecff;
    --bg3: #ffffff;
    --surface: rgba(0, 0, 0, 0.03);
    --border: rgba(0, 0, 0, 0.08);
    --border-h: rgba(0, 0, 0, 0.18);
    --text: #0f172a;
    --muted: #6b7a99;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-h);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    transition: background .4s, color .4s;
}

/* ─── mesh background ─── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 20% 0%, rgba(59, 130, 246, .12) 0%, transparent 60%),
        radial-gradient(ellipse 50% 60% at 80% 100%, rgba(168, 85, 247, .10) 0%, transparent 55%),
        radial-gradient(ellipse 40% 50% at 60% 40%, rgba(34, 197, 94, .07) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h60v60H0z' fill='none'/%3E%3Ccircle cx='30' cy='30' r='.5' fill='rgba(255,255,255,.06)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

/* ─── header ─── */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(20px, 4vw, 64px);
    height: 64px;
    background: rgba(7, 12, 24, .85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background .4s;
}

[data-theme="light"] header {
    background: rgba(240, 244, 255, .85);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -.4px;
}

.logo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
    animation: pulse-dot 2.5s ease-in-out infinite;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: .5;
        transform: scale(.7);
    }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.clock {
    font-family: var(--font-m);
    font-size: 13px;
    color: var(--muted);
    letter-spacing: .5px;
}

.theme-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    cursor: pointer;
    display: grid;
    place-items: center;
    font-size: 15px;
    transition: border-color .2s, background .2s;
}

.theme-btn:hover {
    border-color: var(--border-h);
    background: var(--bg3);
}

/* ─── main ─── */
main {
    flex: 1;
    position: relative;
    z-index: 1;
    padding: clamp(28px, 4vw, 34px) clamp(20px, 4vw, 34px) 0;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* ─── greeting ─── */
.greeting {
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeUp .6s .1s forwards;
}

.greeting-label {
    font-family: var(--font-m);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

.greeting-text {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.1;
}

.greeting-sub {
    margin-top: 8px;
    font-family: var(--font-m);
    font-size: 13px;
    color: var(--muted);
}

/* ─── search ─── */
.search-wrap {
    position: relative;
    margin-bottom: 44px;
    opacity: 0;
    animation: fadeUp .6s .2s forwards;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 14px;
    pointer-events: none;
    font-family: var(--font-m);
}

.search-kbd {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-m);
    font-size: 11px;
    color: var(--muted);
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px 7px;
    letter-spacing: .5px;
}

.search-input {
    width: 100%;
    padding: 15px 90px 15px 44px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-family: var(--font-h);
    font-size: 14px;
    outline: none;
    backdrop-filter: blur(10px);
    transition: border-color .2s, background .2s, box-shadow .2s;
}

.search-input::placeholder {
    color: var(--muted);
}

.search-input:focus {
    border-color: rgba(59, 130, 246, .5);
    background: rgba(59, 130, 246, .05);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, .1);
}

/* ─── section title ─── */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 16px;
    font-family: var(--font-m);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
    opacity: 0;
    animation: fadeUp .5s forwards;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ─── grid ─── */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: clamp(12px, 1.5vw, 20px);
    margin-bottom: clamp(28px, 3vw, 44px);
}

/* ─── card ─── */
.card {
    position: relative;
    border-radius: var(--radius);
    padding: 22px;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--surface);
    backdrop-filter: blur(12px);
    overflow: hidden;
    transition: transform .25s cubic-bezier(.4, 0, .2, 1),
        border-color .25s,
        box-shadow .25s;
    opacity: 0;
    animation: fadeUp .5s forwards;
}

.card:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: var(--border-h);
}

/* glow on hover via pseudo */
.card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity .35s;
    pointer-events: none;
}

.card.library::after {
    background: radial-gradient(circle at 0% 0%, rgba(59, 130, 246, .18), transparent 65%);
}

.card.twodo::after {
    background: radial-gradient(circle at 0% 0%, rgba(34, 197, 94, .16), transparent 65%);
}

.card.grafana::after {
    background: radial-gradient(circle at 0% 0%, rgba(245, 158, 11, .16), transparent 65%);
}

.card.public::after {
    background: radial-gradient(circle at 0% 0%, rgba(168, 85, 247, .16), transparent 65%);
}

.card.monitor::after {
    background: radial-gradient(circle at 0% 0%, rgba(6, 182, 212, .16), transparent 65%);
}

.card:hover::after {
    opacity: 1;
}

/* accent stripe */
.card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    border-radius: 3px 0 0 3px;
    transition: width .25s;
}

.card:hover::before {
    width: 4px;
}

.card.library::before {
    background: var(--glow-lib);
}

.card.twodo::before {
    background: var(--glow-twodo);
}

.card.grafana::before {
    background: var(--glow-graf);
}

.card.public::before {
    background: var(--glow-pub);
}

.card.monitor::before {
    background: var(--glow-mon);
}

/* hover shadow */
.card.library:hover {
    box-shadow: 0 20px 60px rgba(59, 130, 246, .15);
}

.card.twodo:hover {
    box-shadow: 0 20px 60px rgba(34, 197, 94, .15);
}

.card.grafana:hover {
    box-shadow: 0 20px 60px rgba(245, 158, 11, .15);
}

.card.public:hover {
    box-shadow: 0 20px 60px rgba(168, 85, 247, .15);
}

.card.monitor:hover {
    box-shadow: 0 20px 60px rgba(6, 182, 212, .15);
}

/* card top row */
.card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.icon-box {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg2);
    display: grid;
    place-items: center;
    overflow: hidden;
    flex-shrink: 0;
}

.icon-box img {
    width: 26px;
    height: 26px;
    object-fit: contain;
}

.icon-box .icon-letter {
    font-size: 18px;
    font-weight: 800;
}

/* status badge */
.status {
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: var(--font-m);
    font-size: 10px;
    letter-spacing: .5px;
    padding: 4px 9px;
    border-radius: 999px;
    border: 1px solid;
}

.status.checking {
    color: var(--muted);
    border-color: var(--border);
    background: transparent;
}

.status.online {
    color: #22c55e;
    border-color: rgba(34, 197, 94, .3);
    background: rgba(34, 197, 94, .08);
}

.status.offline {
    color: #ef4444;
    border-color: rgba(239, 68, 68, .3);
    background: rgba(239, 68, 68, .08);
}

.status.static {
    color: var(--muted);
    border-color: var(--border);
    background: transparent;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.status.online .status-dot {
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .2;
    }
}

/* card content */
.card-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -.3px;
    margin-bottom: 5px;
}

.card-desc {
    font-family: var(--font-m);
    font-size: 12px;
    color: var(--muted);
    line-height: 1.5;
}

.card-tag {
    display: inline-block;
    margin-top: 14px;
    font-family: var(--font-m);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px 8px;
}

/* card arrow */
.card-arrow {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    display: grid;
    place-items: center;
    font-size: 12px;
    opacity: 0;
    transition: opacity .2s, transform .2s;
    color: var(--muted);
}

.card:hover .card-arrow {
    opacity: 1;
    transform: translate(2px, -2px);
}

/* ─── empty search state ─── */
.empty-state {
    display: none;
    text-align: center;
    padding: 60px 20px;
    color: var(--muted);
    font-family: var(--font-m);
    font-size: 13px;
}

.empty-state.show {
    display: block;
}

.empty-icon {
    font-size: 32px;
    margin-bottom: 12px;
    opacity: .3;
}

/* ─── footer ─── */
footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 20px clamp(20px, 4vw, 64px);
    background: var(--bg);
}

.footer-inner {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-family: var(--font-m);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: .3px;
}

.footer-inner strong {
    color: var(--text);
    font-weight: 500;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.sys-count {
    font-family: var(--font-m);
    font-size: 11px;
    color: var(--muted);
}

.sys-count span {
    color: var(--text);
}

/* ─── animations ─── */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* stagger cards */
.card:nth-child(1) {
    animation-delay: .15s;
}

.card:nth-child(2) {
    animation-delay: .22s;
}

.card:nth-child(3) {
    animation-delay: .29s;
}

.card:nth-child(4) {
    animation-delay: .36s;
}

.card:nth-child(5) {
    animation-delay: .43s;
}

.card:nth-child(6) {
    animation-delay: .50s;
}

/* ─── responsive ─── */

/* Tablets e telas intermediárias */
@media (max-width: 900px) {
    main {
        padding-top: 36px;
    }

    .search-wrap {
        margin-bottom: 36px;
    }
}

/* Celulares */
@media (max-width: 600px) {
    header {
        height: 58px;
    }

    .greeting-text {
        font-size: clamp(24px, 6vw, 30px);
    }

    .greeting-sub {
        font-size: 11px;
    }

    .search-input {
        padding: 13px 16px 13px 42px;
        font-size: 13px;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .card {
        padding: 18px;
    }

    .card-arrow {
        opacity: 1;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-right {
        flex-wrap: wrap;
    }
}

/* Celulares pequenos */
@media (max-width: 380px) {

    header,
    main,
    footer {
        padding-left: 14px;
        padding-right: 14px;
    }

    .logo {
        font-size: 15px;
    }

    .header-right {
        gap: 10px;
    }

    .clock {
        font-size: 11px;
    }

    .card {
        padding: 16px;
    }
}

/* Monitores grandes */
@media (min-width: 1600px) {

    main,
    .footer-inner {
        max-width: 1800px;
    }

    .card {
        padding: 26px;
    }

    .card-title {
        font-size: 19px;
    }

    .card-desc {
        font-size: 13px;
    }
}

/* ─── melhorias de interação ─── */

.card {
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.card:focus-visible,
.theme-btn:focus-visible,
.search-input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}