:root {
    /* Cores atuais (fallback) */
    --bg-color: #E8EEF3;
    --text-color: #3D5268;
    --text-secondary: #6B7C8E;
    --primary-color: #5B8BB5;
    --secondary-color: #4A7BA0;
    --sidebar-bg: #3A4A5C;
    --header-bg: #5B8BB5;
    --card-bg: #FFFFFF;
    --border-color: #D4DDE5;

    /* Design system Ark (Figma) – paleta e semântica */
    --ark-primaria: #001018;
    --ark-primaria-2: #002031;
    --ark-primaria-3: #00324c;
    --ark-primaria-4: #005682;
    --ark-secundaria: #112e4e;
    --ark-branco: #ffffff;
    --ark-fundo-claro: #f3f5f7;
    --ark-cinza-claro: #e7e9ed;
    --ark-cinza-medio: #d8dadf;
    --ark-cinza: #c7c9d0;
    /* Semânticas (ajustar hex conforme Figma se necessário) */
    --ark-sucesso: #0d6e0d;
    --ark-erro: #b91c1c;
    --ark-alerta: #b45309;
    --ark-info: #0369a1;
}

/* Tema escuro */
[data-theme="dark"] {
    --bg-color: #151a20;
    --text-color: #e8ecf0;
    --text-secondary: #9ca8b5;
    --primary-color: #6ba3d1;
    --secondary-color: #5a92b8;
    --sidebar-bg: #1e2329;
    --header-bg: #252b33;
    --card-bg: #1e2329;
    --border-color: #353d48;
    --ark-primaria: #e8ecf0;
    --ark-primaria-2: #c5ccd6;
    --ark-primaria-3: #9ca8b5;
    --ark-primaria-4: #6ba3d1;
    --ark-secundaria: #8faac9;
    --ark-branco: #151a20;
    --ark-fundo-claro: #1e2329;
    --ark-cinza-claro: #353d48;
    --ark-cinza-medio: #454f5c;
    --ark-cinza: #556070;
}

[data-theme="dark"] .top-header {
    background: var(--header-bg);
}

[data-theme="dark"] .sidebar {
    background: var(--sidebar-bg);
}

[data-theme="dark"] .main-footer {
    background: var(--ark-fundo-claro);
    border-top-color: var(--border-color);
}

[data-theme="dark"] .calendar-widget,
[data-theme="dark"] .events-widget,
[data-theme="dark"] .calendar-events-card {
    box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

/* Calendário e agenda: contraste no modo escuro */
[data-theme="dark"] .calendar-month,
[data-theme="dark"] .events-title,
[data-theme="dark"] .event-name,
[data-theme="dark"] .calendar-day {
    color: var(--text-color);
}
[data-theme="dark"] .calendar-nav {
    color: var(--text-secondary);
}
[data-theme="dark"] .calendar-nav:hover {
    color: var(--text-color);
}
[data-theme="dark"] .weekday {
    color: var(--text-secondary);
}
[data-theme="dark"] .calendar-day.other-month {
    color: var(--ark-cinza);
}
[data-theme="dark"] .calendar-day:hover {
    background: var(--ark-cinza-claro);
}
[data-theme="dark"] .calendar-day.today {
    background: var(--ark-cinza-claro);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}
[data-theme="dark"] .calendar-events-divider,
[data-theme="dark"] .event-item {
    border-color: var(--border-color);
}
[data-theme="dark"] .event-time {
    color: var(--text-secondary);
}
[data-theme="dark"] .view-agenda-btn {
    background: var(--primary-color);
    color: #fff;
}
[data-theme="dark"] .view-agenda-btn:hover {
    background: var(--secondary-color);
    color: #fff;
}

[data-theme="dark"] .notifications-panel {
    box-shadow: 4px 0 24px rgba(0,0,0,0.35);
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Skip link - visível apenas ao receber foco (acessibilidade WCAG 2.1) */
.skip-link {
    position: absolute;
    top: -3rem;
    left: 0.5rem;
    z-index: 10000;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: var(--ark-branco);
    text-decoration: none;
    border-radius: 0.25rem;
    font-weight: 500;
    transition: top 0.2s ease;
}
.skip-link:focus {
    top: 0.5rem;
    outline: 2px solid var(--ark-branco);
    outline-offset: 2px;
}

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    line-height: 1;
    color: inherit;
}

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

.loading-progress circle {
    fill: none;
    stroke: #e0e0e0;
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress .loading-progress-circle {
    stroke: #1b6ec2;
    stroke-dasharray: 0.625rem 1.5625rem;
    stroke-dashoffset: 0;
    animation: loading-progress 1s ease-in-out infinite;
}

@keyframes loading-progress {
    0% {
        stroke-dasharray: 0.625rem 1.5625rem;
        stroke-dashoffset: 0;
    }
    50% {
        stroke-dasharray: 0.625rem 1.5625rem;
        stroke-dashoffset: -0.9375rem;
    }
    100% {
        stroke-dasharray: 0.625rem 1.5625rem;
        stroke-dashoffset: -1.5625rem;
    }
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

.loading-progress-text:after {
    content: var(--blazor-load-percentage-text, "Loading");
}