:root {
    color-scheme: dark;
    --bg: #121212;
    --surface: #1b1820;
    --surface-strong: #26202e;
    --text: #f8f7fa;
    --muted: #aaa4b0;
    --primary: #e61e6e;
    --primary-hover: #f23a82;
    --secondary: #663399;
    --accent: #24c6f0;
    --danger: #ff568e;
    --warning: #ffc857;
    --border: rgba(255, 255, 255, 0.11);
    --brand-gradient: linear-gradient(135deg, #e61e6e 0%, #663399 52%, #24c6f0 100%);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 8%, rgba(230, 30, 110, 0.18), transparent 32rem),
        radial-gradient(circle at 88% 92%, rgba(36, 198, 240, 0.13), transparent 30rem),
        var(--bg);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--accent); }

h1, h2, h3, .brand, .button {
    font-family: Montserrat, Inter, ui-sans-serif, system-ui, sans-serif;
}

.topbar {
    width: min(1180px, calc(100% - 32px));
    min-height: 112px;
    padding: 10px 0;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-size: 1.2rem;
    font-weight: 800;
    text-decoration: none;
}

.brand-mark {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    color: white;
    background: var(--brand-gradient);
    box-shadow: 0 8px 24px rgba(230, 30, 110, 0.25);
}

.developed-by {
    margin-left: auto;
    margin-right: 26px;
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--muted);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.developed-by img {
    width: 168px;
    height: 92px;
    object-fit: contain;
}

.user-nav {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--muted);
}

.user-nav form { margin: 0; }

.page-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 48px 0 80px;
}

.auth-layout {
    min-height: calc(100vh - 200px);
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
    align-items: center;
    gap: clamp(40px, 8vw, 110px);
}

.hero-copy h1 {
    max-width: 760px;
    margin: 12px 0 20px;
    font-size: clamp(2.6rem, 6vw, 5.5rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.hero-copy p {
    max-width: 650px;
    color: var(--muted);
    font-size: 1.15rem;
    line-height: 1.7;
}

.eyebrow {
    background: linear-gradient(90deg, var(--primary), var(--accent));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.panel {
    border: 1px solid var(--border);
    border-radius: 24px;
    background: rgba(27, 24, 32, 0.9);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.auth-card { padding: clamp(24px, 4vw, 40px); }
.auth-card h2 { margin: 0 0 6px; font-size: 1.8rem; }
.muted { color: var(--muted); }

.field {
    display: grid;
    gap: 8px;
    margin: 20px 0;
}

.field label { font-size: 0.88rem; font-weight: 700; }

.field input {
    width: 100%;
    min-height: 48px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    outline: none;
    color: var(--text);
    background: rgba(10, 9, 12, 0.68);
    font: inherit;
}

.field input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(36, 198, 240, 0.16);
}

.field-error { color: var(--danger); font-size: 0.8rem; }

.button {
    min-height: 42px;
    padding: 0 18px;
    border: 0;
    border-radius: 12px;
    cursor: pointer;
    color: var(--text);
    font: inherit;
    font-weight: 800;
}

.button-primary {
    background: var(--brand-gradient);
    box-shadow: 0 10px 28px rgba(230, 30, 110, 0.23);
}

.button-primary:hover:not(:disabled) { filter: brightness(1.12); }
.button-ghost { border: 1px solid var(--border); background: transparent; }
.button-bingo { background: linear-gradient(135deg, #ff4d77, #ff7b54); box-shadow: 0 10px 28px rgba(255, 77, 119, 0.24); }
.button-block { width: 100%; margin-top: 8px; }
.button:disabled { cursor: not-allowed; opacity: 0.45; }
.button-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.auth-switch { margin: 24px 0 0; color: var(--muted); text-align: center; }

.alert {
    margin-bottom: 18px;
    padding: 13px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
}

.alert-success { border-color: rgba(40, 215, 161, 0.45); }
.alert-danger { border-color: rgba(255, 113, 140, 0.45); }
.alert-warning { border-color: rgba(255, 200, 87, 0.45); }

.dashboard-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
}

.dashboard-heading h1 { margin: 8px 0; font-size: clamp(2.2rem, 5vw, 4.2rem); }

.empty-state {
    min-height: 360px;
    padding: 48px;
    display: grid;
    place-items: center;
    align-content: center;
    text-align: center;
}

.empty-state h2 { margin-bottom: 0; }
.empty-state p { color: var(--muted); }

.empty-icon {
    width: 88px;
    height: 88px;
    display: grid;
    place-items: center;
    border: 8px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    color: var(--accent);
    font-size: 1.6rem;
    font-weight: 900;
    background: var(--surface-strong);
}

.bingo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.bingo-card {
    min-height: 220px;
    padding: 28px;
    color: var(--text);
    text-decoration: none;
    transition: transform 160ms ease, border-color 160ms ease;
}

.bingo-card:hover { transform: translateY(-4px); border-color: rgba(36, 198, 240, 0.58); }
.bingo-card h2 { margin: 38px 0 8px; font-size: 1.6rem; }
.bingo-card p, .bingo-card-top { color: var(--muted); }
.bingo-card-top { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; }
.card-action { display: block; margin-top: 28px; color: var(--accent); font-weight: 800; }

.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.status-active { background: var(--accent); box-shadow: 0 0 14px var(--accent); }

.narrow-page { width: min(640px, 100%); margin: 30px auto; }
.form-panel { margin-top: 28px; padding: clamp(28px, 6vw, 54px); }
.form-panel h1 { margin: 12px 0; font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.05; }
.back-link { display: inline-block; margin-bottom: 22px; color: var(--muted); text-decoration: none; }

.game-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 30px;
}

.game-heading h1 { margin: 7px 0 0; font-size: clamp(2.2rem, 5vw, 4rem); }
.game-layout { display: grid; grid-template-columns: minmax(280px, 0.38fr) minmax(500px, 0.62fr); gap: 22px; }
.draw-panel { padding: 30px; text-align: center; }
.round-label { color: var(--muted); font-weight: 700; }

.current-ball, .current-call {
    width: min(230px, 80%);
    aspect-ratio: 1;
    margin: 34px auto;
    display: grid;
    place-items: center;
    border: 14px solid rgba(255, 255, 255, 0.14);
    border-radius: 50%;
    font-size: clamp(4rem, 10vw, 7rem);
    font-weight: 900;
    line-height: 1;
    background:
        radial-gradient(circle at 30% 24%, rgba(255,255,255,.32), transparent 17%),
        var(--brand-gradient);
    box-shadow: 0 24px 55px rgba(230, 30, 110, 0.28), 0 10px 45px rgba(36, 198, 240, 0.13);
}

.current-call small { margin-right: 8px; font-size: 0.42em; color: rgba(255,255,255,0.82); }

.draw-button { width: 100%; min-height: 58px; font-size: 1.05rem; }
.recent-draws { margin-top: 22px; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px; color: var(--muted); }
.recent-draws b { min-width: 48px; height: 34px; padding: 0 8px; display: grid; place-items: center; border-radius: 18px; color: var(--text); background: var(--surface-strong); font-size: 0.78rem; }
.board-panel { padding: clamp(18px, 3vw, 30px); }
.board-title, .number-board { display: grid; grid-template-columns: repeat(5, 1fr); gap: 7px; }
.board-title { margin-bottom: 12px; text-align: center; color: var(--accent); font-size: 1.8rem; font-weight: 900; }

.board-number {
    min-height: 42px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 9px;
    color: var(--muted);
    background: rgba(5, 13, 24, 0.5);
    font-weight: 800;
}

.board-number.is-drawn {
    border-color: rgba(36, 198, 240, 0.7);
    color: white;
    background: var(--brand-gradient);
    box-shadow: 0 5px 16px rgba(230, 30, 110, 0.2);
}

.history-section { margin-top: 46px; }
.history-list { overflow: hidden; border: 1px solid var(--border); border-radius: 16px; }
.history-row { padding: 16px 20px; display: grid; grid-template-columns: 1fr 1fr auto auto; gap: 16px; border-bottom: 1px solid var(--border); color: var(--muted); }
.history-row:last-child { border-bottom: 0; }
.history-row strong { color: var(--text); }
.round-status { color: var(--accent); font-weight: 800; }
.draw-log-section { margin-top: 38px; }
.section-heading-inline { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.draw-log { overflow: hidden; border: 1px solid var(--border); border-radius: 16px; }
.draw-log > div { padding: 12px 18px; display: grid; grid-template-columns: 55px 90px 1fr; gap: 14px; border-bottom: 1px solid var(--border); align-items: center; }
.draw-log > div:last-child { border-bottom: 0; }
.draw-call { color: var(--accent); font-size: 1.05rem; font-weight: 900; }
.draw-log time { color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }

.round-toolbar { margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.toolbar-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.toolbar-actions form { margin: 0; }
.status-badge { padding: 9px 14px; border-radius: 99px; font-weight: 800; background: var(--surface-strong); }
.status-active { color: var(--accent); }
.status-paused { color: var(--warning); }
.status-checking { color: #ff8aa2; }
.text-button { margin-top: 18px; border: 0; color: var(--muted); background: none; cursor: pointer; text-decoration: underline; }

.public-link-bar {
    margin: -10px 0 24px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(16, 29, 47, 0.62);
}

.public-link-bar div { display: grid; gap: 3px; }
.public-link-bar span { color: var(--muted); font-size: 0.86rem; }
.public-body { overflow-x: hidden; }
.public-game { width: min(1500px, calc(100% - 48px)); margin: 0 auto; padding: 28px 0 40px; }

.public-header {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 28px;
    margin-bottom: 24px;
    text-align: center;
}

.public-header .brand { justify-self: start; }
.public-header h1 { margin: 4px 0 0; font-size: clamp(1.5rem, 4vw, 3rem); }
.public-round { justify-self: end; padding: 10px 16px; border: 1px solid var(--border); border-radius: 99px; color: var(--accent); font-weight: 800; background: var(--surface); }
.public-layout { display: grid; grid-template-columns: minmax(320px, 0.38fr) minmax(600px, 0.62fr); gap: 26px; align-items: center; }
.public-current { text-align: center; }
.public-label { color: var(--muted); font-size: 1.1rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; }
.public-ball {
    width: min(350px, 80%);
    margin: 30px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0;
    text-align: center;
    font-size: clamp(6rem, 14vw, 11rem);
}

.public-ball small {
    min-height: 0;
    margin: 0;
    font-size: 0.3em;
    line-height: 1;
}

.public-ball span {
    display: block;
    width: 100%;
    line-height: 0.9;
    text-align: center;
}
.public-current p { color: var(--muted); font-size: 1.05rem; }
.remaining-count { font-weight: 800; }
.public-board .board-number { min-height: clamp(40px, 5vh, 62px); font-size: clamp(0.9rem, 1.7vw, 1.3rem); }

.ball-pop { animation: ball-pop 600ms cubic-bezier(.2, .9, .25, 1.25); }
.fullscreen-button, .sound-button { position: fixed; top: 14px; z-index: 10; min-height: 38px; padding: 0 14px; border: 1px solid var(--border); border-radius: 99px; color: var(--text); background: rgba(7,17,31,.82); cursor: pointer; }
.fullscreen-button { right: 14px; }
.sound-button { right: 112px; }
.is-checking::before { content: "CONFERINDO BINGO"; position: fixed; inset: 0; z-index: 8; display: grid; place-items: center; color: white; background: rgba(148, 20, 58, .88); font-size: clamp(3rem, 10vw, 9rem); font-weight: 950; letter-spacing: -.04em; text-align: center; }

.technology-signature {
    width: fit-content;
    margin-top: 34px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    border: 1px solid var(--border);
    border-radius: 16px;
    color: var(--muted);
    background: rgba(18, 18, 18, 0.42);
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.technology-signature img {
    width: 240px;
    height: 150px;
    object-fit: contain;
}

.site-footer {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 22px 0 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    color: #77717e;
    font-size: 0.76rem;
}

.footer-divider {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary);
}

.public-brand-stack {
    justify-self: start;
    display: grid;
    gap: 4px;
}

.public-main-logo {
    width: min(140px, 32%);
    height: auto;
    margin: 0 auto 14px;
    display: block;
    object-fit: contain;
}

.public-footer {
    padding-top: 24px;
    color: #77717e;
    font-size: 0.7rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@keyframes ball-pop {
    0% { opacity: 0.35; transform: scale(0.65) rotate(-8deg); }
    70% { transform: scale(1.08) rotate(2deg); }
    100% { opacity: 1; transform: scale(1) rotate(0); }
}

@media (max-width: 800px) {
    .auth-layout { grid-template-columns: 1fr; }
    .hero-copy h1 { font-size: clamp(2.5rem, 13vw, 4rem); }
    .dashboard-heading { align-items: stretch; flex-direction: column; }
    .game-heading { align-items: stretch; flex-direction: column; }
    .game-layout { grid-template-columns: 1fr; }
    .history-row { grid-template-columns: 1fr; gap: 5px; }
    .section-heading-inline { align-items: flex-start; flex-direction: column; }
    .draw-log > div { grid-template-columns: 45px 1fr; }
    .draw-log time { grid-column: 1 / -1; text-align: left; }
    .public-link-bar { align-items: stretch; flex-direction: column; }
    .public-header { grid-template-columns: 1fr; }
    .public-brand-stack, .public-header .brand, .public-round { justify-self: center; }
    .public-layout { grid-template-columns: 1fr; }
    .public-game { width: min(100% - 24px, 1500px); }
    .user-nav > span { display: none; }
    .developed-by { display: none; }
    .technology-signature { align-items: flex-start; flex-direction: column; }
    .technology-signature img { width: 190px; height: 120px; }
    .public-main-logo { width: min(140px, 32%); }
    .site-footer { text-align: center; flex-wrap: wrap; }
}