:root {
    --primary-color: #002b5c;
    --accent-color: #ffcc00;
    --bg-color: #f4f7fa;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-muted: #666666;
    --border-color: #ddd;
}

[data-theme="dark"] {
    --primary-color: #0f172a;
    --accent-color: #f59e0b;
    --bg-color: #0b0f19;
    --card-bg: #1e293b;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, color 0.3s;
}

.app-screen {
    display: none;
    width: 100%;
    min-height: 100vh;
}

.app-screen.active {
    display: flex;
    flex-direction: column;
}

#departmentScreen.active, #dashboardScreen.active {
    display: block;
}

/* ==========================================================
   ESTRUTURA DE GRELHA PARA OS MENUS E DEPARTAMENTOS
   ================================================---------- */
.grid-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.grid-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.grid-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 20px rgba(0,0,0,0.1);
}

.grid-card i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.grid-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.grid-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ==========================================================
   TELA DE LOGIN: VÍDEO A COBRIR O ECRÃ INTEIRO (SEM FAIXAS)
   ================================================---------- */
.cyber-login-screen {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: none;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.cyber-login-screen.active {
    display: flex;
}

.bg-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 1;
    object-fit: cover;
}

.cyber-top-brand {
    position: absolute;
    top: 25px;
    left: 35px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10;
}

.cyber-top-brand img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.95);
    padding: 4px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.cyber-top-brand span {
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    text-shadow: 0 2px 6px rgba(0,0,0,0.8);
}

.cyber-login-container {
    position: relative;
    width: 100%;
    max-width: 430px;
    z-index: 5;
    padding: 0 20px;
    margin-left: 90px;
    margin-top: 45px;
}

.cyber-form-box {
    background: rgba(11, 43, 92, 0.85);
    padding: 30px;
    border-radius: 8px;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
}

.cyber-input-group {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    margin-bottom: 18px;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s, background 0.2s;
}

.cyber-input-group:focus-within {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.8);
}

.cyber-icon {
    padding: 0 16px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
}

.cyber-input-group input {
    width: 100%;
    background: transparent;
    border: none;
    padding: 16px 16px 16px 0;
    color: #ffffff;
    font-size: 15px;
    outline: none;
}

.cyber-input-group input::placeholder {
    color: rgba(255, 255, 255, 0.65);
}

.cyber-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
}

.cyber-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.cyber-forgot {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.2s;
}

.cyber-forgot:hover {
    color: #ffffff;
    text-decoration: underline;
}

.cyber-btn-login {
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    color: #0b1329;
    border: none;
    padding: 16px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 15px;
    letter-spacing: 1px;
    cursor: pointer;
    margin-bottom: 15px;
    transition: background 0.2s;
}

.cyber-btn-login:hover {
    background: #ffffff;
}

.cyber-btn-register {
    width: 100%;
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.6);
    padding: 16px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 15px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.cyber-btn-register:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 768px) {
    .cyber-top-brand {
        top: 15px;
        left: 20px;
    }
    .cyber-login-container {
        margin-left: 0;
        margin-top: 0;
    }
}

.header-top-dash {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.header-top-dash h2 {
    font-size: 26px;
    color: var(--text-color);
}

.header-top-dash p {
    color: var(--text-muted);
    font-size: 14px;
}

.user-badge {
    background: var(--card-bg);
    padding: 8px 15px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.btn-logout {
    background: #dc3545;
    color: #fff;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

.dept-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    position: relative;
}

.dept-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.dept-icon {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.dept-card h3 {
    font-size: 17px;
    margin-bottom: 8px;
    color: var(--text-color);
}

.dept-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
    margin-bottom: 15px;
}

.dept-code-hint {
    font-size: 11px;
    font-weight: bold;
    color: var(--primary-color);
    background: rgba(0,43,92,0.08);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-box {
    background: var(--card-bg);
    width: 100%;
    max-width: 400px;
    padding: 30px;
    border-radius: 10px;
    position: relative;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
}

.dash-nav {
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.theme-btn, .btn-secondary-custom {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: none;
    padding: 8px 14px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
}

.theme-btn:hover, .btn-secondary-custom:hover {
    background: rgba(255,255,255,0.25);
}

.stats-grid-dash {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 8px;
}

.stat-box h4 {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.stat-box h2 {
    font-size: 22px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.stat-box p {
    font-size: 12px;
    color: var(--text-muted);
}

.management-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th, .data-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    color: var(--text-muted);
    font-weight: 600;
    background: rgba(0,0,0,0.02);
}

.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: bold;
    display: inline-block;
}

.badge.high { background: #ffe3e3; color: #dc3545; }
.badge.medium { background: #fff3cd; color: #856404; }
.badge.in-progress { background: #cce5ff; color: #004080; }

.btn-action {
    background: #28a745;
    color: #fff;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.toast-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--card-bg);
    color: var(--text-color);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    border-left: 4px solid #28a745;
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 99999;
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
}

.toast-notification.show {
    transform: translateY(0);
    opacity: 1;
}