:root {
        --bg-deep: #0a0a0a;
        --bg-base: #111111;
        --bg-panel: rgba(17, 17, 17, 0.92);
        --bg-panel-2: rgba(10, 10, 10, 0.96);
        --bg-soft: rgba(245, 243, 238, 0.04);

        --text-main: #f5f3ee;
        --text-soft: rgba(245, 243, 238, 0.7);
        --text-dim: rgba(245, 243, 238, 0.5);
        --alpha-muted: rgba(245, 243, 238, 0.58);

        --gold: #c9952a;
        --gold-strong: #e8b84b;
        --gold-dark: #8f6518;

        --cyan: #c9952a;
        --cyan-strong: #e8b84b;

        --line: rgba(245, 243, 238, 0.10);
        --line-gold: rgba(201, 149, 42, 0.24);
        --border: rgba(245, 243, 238, 0.08);

        --success: #49d17d;
        --warning: #f1c15d;
        --danger: #ff6b6b;

        --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.16);
        --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.22);
        --shadow-cyan: 0 0 0 1px rgba(201, 149, 42, 0.08);

        --radius-xl: 24px;
        --radius-lg: 18px;
        --radius-md: 14px;
    }

    .text-muted {
        color: var(--alpha-muted) !important;
    }

    html, body {
        min-height: 100%;
    }

    body {
        background:
            radial-gradient(circle at 15% 20%, rgba(201, 149, 42, 0.08), transparent 20%),
            radial-gradient(circle at 85% 10%, rgba(245, 243, 238, 0.04), transparent 18%),
            linear-gradient(135deg, #0a0a0a 0%, #111111 45%, #0d0d0d 100%);
        color: var(--text-main);
        font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
        letter-spacing: 0.02em;
        overflow-x: hidden;
    }

    a {
        color: var(--cyan);
        text-decoration: none;
    }

    a:hover {
        color: var(--cyan-strong);
    }

    h1, h2, h3, h4, h5, h6 {
        color: var(--text-main);
        letter-spacing: 0.06em;
        text-transform: uppercase;
    }

    .container,
    .container-fluid {
        position: relative;
        z-index: 1;
    }

    .theme-claro body {
        background: linear-gradient(135deg, #f5f3ee 0%, #ece8de 50%, #e2dccf 100%);
        color: #111111;
        --text-main: #111111;
        --text-soft: rgba(17, 17, 17, 0.68);
        --text-dim: rgba(17, 17, 17, 0.5);
        --bg-panel: rgba(245, 243, 238, 0.92);
        --bg-panel-2: rgba(255, 251, 245, 0.96);
        --bg-soft: rgba(10, 10, 10, 0.03);
        --border: rgba(17, 17, 17, 0.10);
        --line: rgba(17, 17, 17, 0.10);
        --line-gold: rgba(201, 149, 42, 0.20);
    }

    .theme-escuro body {
        color: var(--text-main);
    }

    .hud-label,
    .section-label,
    .nav-meta,
    .tactical-badge {
        font-size: 0.72rem;
        text-transform: uppercase;
        letter-spacing: 0.16em;
        font-weight: 700;
    }

    .section-label { color: var(--gold); }
    .hud-label { color: var(--cyan); }
    .text-soft { color: var(--text-soft); }
    .text-gold { color: var(--gold); }
    .text-cyan { color: var(--cyan); }

    .navbar-alpha3 {
        position: sticky;
        top: 0;
        z-index: 1030;
        background: linear-gradient(90deg, rgba(10, 10, 10, 0.96), rgba(17, 17, 17, 0.96));
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow-md);
    }

    .navbar-alpha3::after {
        content: "";
        position: absolute;
        left: 22px;
        right: 22px;
        bottom: 0;
        height: 1px;
        background: linear-gradient(90deg, transparent, var(--gold), var(--gold-strong), transparent);
        opacity: 0.45;
    }

    .navbar-brand {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .navbar-brand::after {
        content: "";
        color: var(--gold);
        font-size: 0.68rem;
        letter-spacing: 0.18em;
        font-weight: 700;
        white-space: nowrap;
        opacity: 0.9;
    }

    .navbar-dark .navbar-nav .nav-link {
        color: var(--text-main);
        opacity: 0.92;
        position: relative;
        transition: color 0.2s ease;
    }

    .navbar-dark .navbar-nav .nav-link:hover {
        color: #fff;
    }

    .navbar-dark .navbar-nav .nav-link::after {
        content: "";
        position: absolute;
        left: 0.5rem;
        right: 0.5rem;
        bottom: 0.25rem;
        height: 1px;
        background: linear-gradient(90deg, transparent, var(--gold), transparent);
        transform: scaleX(0);
        transform-origin: center;
        transition: transform 0.2s ease;
        opacity: 0.7;
    }

    .navbar-dark .navbar-nav .nav-link:hover::after {
        transform: scaleX(1);
    }

    .nav-user-chip,
    .nav-console {
        display: inline-flex;
        align-items: center;
        gap: 0.7rem;
        padding: 0.6rem 0.9rem;
        border-radius: 16px;
        border: 1px solid var(--line);
        background: rgba(245,243,238,0.03);
        box-shadow: var(--shadow-cyan);
    }

    .nav-user-chip i {
        color: var(--gold);
    }

    .nav-console::before {
        content: "";
        width: 9px;
        height: 9px;
        border-radius: 50%;
        background: var(--success);
        flex: 0 0 auto;
    }

    .nav-console .nav-meta {
        color: var(--text-soft);
        margin-bottom: 0;
        line-height: 1.1;
    }

    .nav-console strong {
        display: block;
        color: var(--gold-strong);
        font-size: 0.72rem;
        letter-spacing: 0.14em;
    }

    .theme-switch {
        display: inline-flex;
        gap: 0.45rem;
        padding: 0.3rem;
        border-radius: 999px;
        border: 1px solid var(--line);
        background: rgba(245,243,238,0.03);
    }

    .theme-btn {
        min-width: 92px;
        border-radius: 999px !important;
        border: 1px solid transparent !important;
        color: var(--text-main) !important;
        background: transparent !important;
        transition: all 0.2s ease;
        text-transform: uppercase;
        letter-spacing: 0.10em;
        font-size: 0.72rem;
        font-weight: 700;
    }

    .theme-btn:hover {
        border-color: var(--cyan) !important;
        color: #fff !important;
    }

    .theme-btn.active {
        background: linear-gradient(90deg, rgba(201,149,42,0.16), rgba(232,184,75,0.12)) !important;
        border-color: rgba(201,149,42,0.30) !important;
        color: #fff !important;
    }

    .main-hud {
        position: relative;
        padding: 1.25rem 0 2.5rem;
    }

    .command-shell {
        position: relative;
        z-index: 1;
        border: 1px solid var(--border);
        border-radius: var(--radius-xl);
        padding: 1.5rem;
        background: linear-gradient(135deg, var(--bg-panel), var(--bg-panel-2));
        box-shadow: var(--shadow-md), var(--shadow-cyan);
        overflow: hidden;
    }

    .shell-header {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 1rem;
        align-items: center;
        margin-bottom: 1.35rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--line);
    }

    .shell-header-left h1,
    .shell-header-left h2,
    .shell-header-left h3,
    .shell-header-left h4 {
        margin-bottom: 0.2rem;
    }

    .shell-header-left small {
        color: var(--text-soft);
        text-transform: uppercase;
        letter-spacing: 0.14em;
    }

    .hud-status-group {
        display: flex;
        flex-wrap: wrap;
        gap: 0.7rem;
    }

    .hud-pill {
        display: inline-flex;
        align-items: center;
        gap: 0.55rem;
        padding: 0.65rem 0.9rem;
        border: 1px solid var(--line);
        border-radius: 999px;
        background: rgba(255,255,255,0.03);
        font-size: 0.78rem;
        letter-spacing: 0.06em;
        text-transform: uppercase;
    }

    .hud-pill::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--cyan);
    }

    .hud-pill.gold::before { background: var(--gold); }
    .hud-pill.success::before { background: var(--success); }

    .card,
    .list-group-item,
    .modal-content,
    .dropdown-menu {
        background: linear-gradient(180deg, rgba(245,243,238,0.02), rgba(245,243,238,0.01)), var(--bg-panel);
        border: 1px solid var(--border);
        color: inherit;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
    }

    .card {
        overflow: hidden;
    }

    .card::before {
        content: "";
        display: block;
        height: 2px;
        background: linear-gradient(90deg, var(--cyan), var(--gold), transparent);
        opacity: 0.8;
    }

    .card-header {
        background: rgba(245,243,238,0.03);
        border-bottom: 1px solid var(--line);
        text-transform: uppercase;
        letter-spacing: 0.12em;
        font-weight: 700;
        color: var(--gold);
    }

    .list-group-item {
        margin-bottom: 0.35rem;
        border-radius: 14px !important;
        transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
    }

    .list-group-item:hover {
        transform: translateY(-1px);
        border-color: rgba(201,149,42,0.24);
        background-color: rgba(245,243,238,0.05);
    }

    .form-control,
    .form-select,
    textarea.form-control {
        background: rgba(245,243,238,0.03);
        border: 1px solid rgba(245,243,238,0.10);
        color: var(--text-main);
        border-radius: 14px;
    }

    .form-control:focus,
    .form-select:focus {
        background: rgba(245,243,238,0.05);
        color: var(--text-main);
        border-color: rgba(201,149,42,0.38);
        box-shadow: 0 0 0 0.2rem rgba(201,149,42,0.12);
    }

    .form-control::placeholder {
        color: var(--text-dim);
    }

    .btn {
        border-radius: 14px;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        font-weight: 700;
        transition: all 0.2s ease;
    }

    .btn-primary {
        --bs-btn-color: #111111;
        --bs-btn-bg: var(--gold);
        --bs-btn-border-color: rgba(201,149,42,0.34);
        --bs-btn-hover-color: #111111;
        --bs-btn-hover-bg: #b2801c;
        --bs-btn-hover-border-color: rgba(232,184,75,0.36);
        --bs-btn-focus-shadow-rgb: 201,149,42;
        --bs-btn-active-color: #111111;
        --bs-btn-active-bg: #b2801c;
        --bs-btn-active-border-color: rgba(232,184,75,0.4);
        background: linear-gradient(90deg, rgba(201, 149, 42, 0.95), rgba(232, 184, 75, 0.95));
        border: 1px solid rgba(201,149,42,0.34);
        color: #111111;
        box-shadow: 0 6px 18px rgba(201,149,42,0.18);
    }

    .btn-primary:hover {
        transform: translateY(-1px);
        background: linear-gradient(90deg, rgba(178, 128, 28, 0.98), rgba(201, 149, 42, 0.98));
        border-color: rgba(232,184,75,0.36);
    }

    .btn-info,
    .btn-success,
    .btn-warning,
    .btn-secondary,
    .btn-dark {
        --bs-btn-color: #111111;
        --bs-btn-bg: var(--gold);
        --bs-btn-border-color: rgba(201,149,42,0.34);
        --bs-btn-hover-color: #111111;
        --bs-btn-hover-bg: #b2801c;
        --bs-btn-hover-border-color: rgba(232,184,75,0.36);
        --bs-btn-focus-shadow-rgb: 201,149,42;
        --bs-btn-active-color: #111111;
        --bs-btn-active-bg: #b2801c;
        --bs-btn-active-border-color: rgba(232,184,75,0.4);
        background: linear-gradient(90deg, rgba(201, 149, 42, 0.95), rgba(232, 184, 75, 0.95));
        border: 1px solid rgba(201,149,42,0.34);
        color: #111111;
        box-shadow: 0 6px 18px rgba(201,149,42,0.18);
    }

    .btn-info:hover,
    .btn-success:hover,
    .btn-warning:hover,
    .btn-secondary:hover,
    .btn-dark:hover {
        transform: translateY(-1px);
        background: linear-gradient(90deg, rgba(178, 128, 28, 0.98), rgba(201, 149, 42, 0.98));
        border-color: rgba(232,184,75,0.36);
        color: #111111;
    }

    .btn-outline-info {
        --bs-btn-color: var(--cyan);
        --bs-btn-border-color: rgba(201,149,42,0.32);
        --bs-btn-hover-color: #111111;
        --bs-btn-hover-bg: var(--gold);
        --bs-btn-hover-border-color: var(--gold);
        --bs-btn-focus-shadow-rgb: 201,149,42;
        --bs-btn-active-color: #111111;
        --bs-btn-active-bg: var(--gold);
        --bs-btn-active-border-color: var(--gold);
        color: var(--cyan);
        border-color: rgba(201,149,42,0.32);
        background: rgba(201,149,42,0.05);
    }

    .btn-outline-info:hover,
    .btn-check:checked + .btn-outline-info {
        color: #111111;
        background: var(--cyan);
        border-color: var(--cyan);
    }

    .btn-outline-primary,
    .btn-outline-secondary,
    .btn-outline-success,
    .btn-outline-warning,
    .btn-outline-danger,
    .btn-outline-light,
    .btn-outline-dark {
        --bs-btn-color: var(--gold-strong);
        --bs-btn-border-color: rgba(201,149,42,0.32);
        --bs-btn-hover-color: #111111;
        --bs-btn-hover-bg: var(--gold);
        --bs-btn-hover-border-color: var(--gold);
        --bs-btn-focus-shadow-rgb: 201,149,42;
        --bs-btn-active-color: #111111;
        --bs-btn-active-bg: var(--gold);
        --bs-btn-active-border-color: var(--gold);
        color: var(--gold-strong);
        border-color: rgba(201,149,42,0.32);
        background: rgba(201,149,42,0.05);
    }

    .btn-primary:focus,
    .btn-primary:active,
    .btn-primary.active,
    .show > .btn-primary.dropdown-toggle,
    .btn-info:focus,
    .btn-info:active,
    .btn-info.active,
    .show > .btn-info.dropdown-toggle,
    .btn-success:focus,
    .btn-success:active,
    .btn-success.active,
    .show > .btn-success.dropdown-toggle,
    .btn-warning:focus,
    .btn-warning:active,
    .btn-warning.active,
    .show > .btn-warning.dropdown-toggle,
    .btn-secondary:focus,
    .btn-secondary:active,
    .btn-secondary.active,
    .show > .btn-secondary.dropdown-toggle,
    .btn-dark:focus,
    .btn-dark:active,
    .btn-dark.active,
    .show > .btn-dark.dropdown-toggle {
        color: #111111 !important;
        background: linear-gradient(90deg, rgba(178, 128, 28, 0.98), rgba(201, 149, 42, 0.98)) !important;
        border-color: rgba(232,184,75,0.4) !important;
        box-shadow: 0 0 0 0.2rem rgba(201,149,42,0.16), 0 6px 18px rgba(201,149,42,0.18) !important;
    }

    .btn-outline-info:focus,
    .btn-outline-info:active,
    .btn-outline-info.active,
    .show > .btn-outline-info.dropdown-toggle,
    .btn-outline-primary:focus,
    .btn-outline-primary:active,
    .btn-outline-primary.active,
    .show > .btn-outline-primary.dropdown-toggle,
    .btn-outline-secondary:focus,
    .btn-outline-secondary:active,
    .btn-outline-secondary.active,
    .show > .btn-outline-secondary.dropdown-toggle,
    .btn-outline-success:focus,
    .btn-outline-success:active,
    .btn-outline-success.active,
    .show > .btn-outline-success.dropdown-toggle,
    .btn-outline-warning:focus,
    .btn-outline-warning:active,
    .btn-outline-warning.active,
    .show > .btn-outline-warning.dropdown-toggle,
    .btn-outline-danger:focus,
    .btn-outline-danger:active,
    .btn-outline-danger.active,
    .show > .btn-outline-danger.dropdown-toggle,
    .btn-outline-light:focus,
    .btn-outline-light:active,
    .btn-outline-light.active,
    .show > .btn-outline-light.dropdown-toggle,
    .btn-outline-dark:focus,
    .btn-outline-dark:active,
    .btn-outline-dark.active,
    .show > .btn-outline-dark.dropdown-toggle {
        color: #111111 !important;
        background: var(--gold) !important;
        border-color: var(--gold) !important;
        box-shadow: 0 0 0 0.2rem rgba(201,149,42,0.16) !important;
    }

    .btn-outline-primary:hover,
    .btn-outline-secondary:hover,
    .btn-outline-success:hover,
    .btn-outline-warning:hover,
    .btn-outline-danger:hover,
    .btn-outline-light:hover,
    .btn-outline-dark:hover,
    .btn-check:checked + .btn-outline-primary,
    .btn-check:checked + .btn-outline-secondary,
    .btn-check:checked + .btn-outline-success,
    .btn-check:checked + .btn-outline-warning,
    .btn-check:checked + .btn-outline-danger,
    .btn-check:checked + .btn-outline-light,
    .btn-check:checked + .btn-outline-dark {
        color: #111111;
        background: var(--gold);
        border-color: var(--gold);
    }

    .btn:disabled,
    .btn.disabled {
        opacity: 0.55;
        border-color: rgba(245,243,238,0.14) !important;
        background: rgba(245,243,238,0.05) !important;
        color: rgba(245,243,238,0.55) !important;
        box-shadow: none !important;
        transform: none !important;
    }

    .btn-link.nav-link {
        text-decoration: none;
    }

    .tactical-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        padding: 0.42rem 0.7rem;
        border-radius: 999px;
        border: 1px solid var(--line-gold);
        background: rgba(200,169,107,0.08);
        color: var(--gold-strong);
    }

    .tactical-badge::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--gold);
    }

    .table {
        color: inherit;
        --bs-table-bg: transparent;
        --bs-table-striped-bg: rgba(245,243,238,0.02);
        --bs-table-hover-bg: rgba(201,149,42,0.05);
        border-color: var(--border);
    }

    .table thead th {
        color: var(--gold);
        text-transform: uppercase;
        letter-spacing: 0.10em;
        font-size: 0.78rem;
        border-bottom-color: var(--line);
    }

    .alert {
        border-radius: 16px;
        border: 1px solid var(--border);
        background: rgba(245,243,238,0.03);
        color: inherit;
    }

    .block-footer-line {
        margin-top: 1.4rem;
        height: 1px;
        background: linear-gradient(90deg, transparent, var(--gold), var(--gold-strong), transparent);
        opacity: 0.35;
    }

    @keyframes blink-pulse {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.55; }
    }

    .pending-blink {
        animation: blink-pulse 1.8s infinite;
    }

    .alpha3-tactical-accordion {
        --acc-bg: rgba(17, 17, 17, 0.88);
        --acc-bg-strong: rgba(10, 10, 10, 0.96);
        --acc-border: rgba(201, 149, 42, 0.18);
        --acc-cyan: #c9952a;
        --acc-gold-strong: #e8b84b;
        --acc-text: #f5f3ee;
        --acc-muted: rgba(245, 243, 238, 0.62);
    }

    .alpha3-tactical-accordion .accordion-item {
        background: transparent;
        border: none;
        margin-bottom: 1rem;
    }

    .alpha3-tactical-accordion .tactical-module {
        position: relative;
        border: 1px solid var(--acc-border);
        border-radius: 1rem;
        overflow: hidden;
        background: linear-gradient(180deg, rgba(17, 17, 17, 0.92), rgba(10, 10, 10, 0.88));
        box-shadow: var(--shadow-sm);
    }

    .alpha3-tactical-accordion .accordion-header {
        margin: 0;
    }

    .alpha3-tactical-accordion .accordion-button {
        background: transparent;
        color: var(--acc-text);
        box-shadow: none;
        border: none;
        padding: 1.05rem 1.15rem;
        font-weight: 600;
        letter-spacing: 0.03em;
        position: relative;
    }

    .alpha3-tactical-accordion .accordion-button strong {
        font-size: 0.95rem;
        color: var(--acc-gold-strong);
    }

    .alpha3-tactical-accordion .accordion-button:not(.collapsed) {
        background: linear-gradient(90deg, rgba(201, 149, 42, 0.08), rgba(232, 184, 75, 0.04));
        color: var(--acc-text);
    }

    .alpha3-tactical-accordion .accordion-button:focus {
        box-shadow: none;
    }

    .alpha3-tactical-accordion .module-icon {
        color: var(--acc-cyan);
    }

    .alpha3-tactical-accordion .accordion-body {
        background: rgba(245, 243, 238, 0.02);
        border-top: 1px solid rgba(201, 149, 42, 0.10);
        padding: 1rem;
    }

    .tactical-list-group {
        background: transparent;
    }

    .tactical-list-group .list-group-item {
        background: rgba(245, 243, 238, 0.03);
        color: var(--acc-text);
        border: none;
        border-bottom: 1px solid rgba(245,243,238,0.06);
        padding: 1rem 1.1rem;
    }

    .tactical-list-group .list-group-item:last-child {
        border-bottom: none;
    }

    .tactical-list-item {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        text-decoration: none;
        position: relative;
        transition: background 0.2s ease, transform 0.2s ease;
    }

    .tactical-list-item:hover {
        background: linear-gradient(90deg, rgba(201, 149, 42, 0.08), rgba(232, 184, 75, 0.04));
        color: var(--text-main);
        transform: translateX(2px);
    }

    .lesson-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        padding: 0.42rem 0.75rem;
        border-radius: 999px;
        background: rgba(201, 149, 42, 0.10);
        border: 1px solid rgba(201, 149, 42, 0.22);
        color: var(--acc-gold-strong);
        font-size: 0.74rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        white-space: nowrap;
    }

    .item-status {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        color: var(--acc-cyan);
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 0.10em;
        white-space: nowrap;
    }

    .item-status::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--gold-strong);
    }

    .coming-soon-badge {
        display: inline-flex;
        align-items: center;
        padding: 0.6rem 0.9rem;
        border-radius: 999px;
        background: rgba(245,243,238,0.05);
        border: 1px solid rgba(201, 149, 42, 0.22);
        color: var(--acc-gold-strong);
        font-weight: 700;
        letter-spacing: 0.08em;
        font-size: 0.78rem;
    }

    @media (max-width: 991.98px) {
        .navbar-brand::after {
            display: none;
        }

        .nav-console {
            margin-top: 0.65rem;
        }

        .command-shell {
            padding: 1.1rem;
        }

        .shell-header {
            align-items: flex-start;
        }
    }

    @media (max-width: 767.98px) {
        .theme-switch {
            width: 100%;
            justify-content: stretch;
        }

        .theme-btn {
            flex: 1 1 auto;
        }

        .hud-status-group {
            width: 100%;
        }

        .hud-pill {
            width: 100%;
            justify-content: flex-start;
        }

        .tactical-list-item {
            align-items: flex-start;
            flex-direction: column;
        }

        .alpha3-tactical-accordion .accordion-button strong {
            font-size: 0.85rem;
            line-height: 1.4;
        }
    }